### animal | vertebrate:

Bird
* All birds also have a beak with which they handle and eat food
  - appreciate a selection of seeds in their diet
* All birds are animals
  - at risk at night, regardless of the time of year
  - edible with no exceptions
* All birds are in the kingdom Animalia
  - phylum Chordata
  - same kingdom, phylum, and class
  - their own large flight cages, built with their comfort in mind
  - of the same color
  - oviparous
  - susceptible to avian tuberculosis
* All birds are the descendants of theropods
  - same in some ways
  - to have a flesh colored beak
* All birds are warm blooded vertebrate animals that have wings, feathers
  - warm-blooded and have beaks and feathers
  - waterproof because of the way their feathers are constructed and overlap
  - bathe, from the smallest finches to the largest macaws
  - belong to a class of warm-blooded animals with feathers
* All birds belong to the 'aves' class of the phylum-chordata
  - group of animals called vertebrates, meaning animals having a backbone
  - can fly
  - communicate with a combination of body language and calls
  - drop feathers
* All birds eat insects, spiders and caterpillars
  - fit that definition, so they are dinosaurs
  - fly and lay eggs
  - generally fly faster when migrating, and of course, when fleeing predators
  - grow feathers
* All birds hatch from eggs
  - out, if they are properly incubated
  - have 'cries' which are the sounds to communicate
* All birds have a cloaca, which slit which contains genitals and the end s of excretory tubes
  - keeled sternum for attachment of wing muscles
  - large gland at the top part of their bill , above their eyes
  - pecking order
  - structure on the retina call the fovea that serves to magnify objects
  - threshold of what they can handle before they lash out with a bite
  - an enlarged nasal gland at the base of the bill, above their eyes
  - beaks, wings and feathers
  - certain typical behavioural characteristics
  - cries which are the sounds to communicate
* All birds have feathers and birds are the only animals that do
  - can swim
  - live in a hurry
  - that serve a variety of functions
  - keen vision
  - no tail an are compleet rumpless
  - scientific names - the same name used everywhere in the world
  - the potential to bite
  - two legs with four toes each
  - what is called a preening gland
* All birds have wings - even ostriches and other flightless birds
  - and all birds fly
* All birds lay eggs and most can fly
  - that are then incubated to let the young ones hatch out
* All birds lay eggs, and the range of different nesting sites and parenting skills is explored
  - none give birth to live young
  - hard-shelled eggs
  - leave soon after sun-up
  - make sounds to communicate
  - migrate based on hormonal changes brought on by changing daylight hours
* All birds molt at least once each year, and some two or three times
  - every year and replace their old feathers with new ones
  - regularly, gradually replacing their old worn-out feathers with new ones
  - move except incubating males
  - preen their feathers
* All birds replace their feathers periodically, a process that's usually gradual
  - reproduce by laying eggs
  - require social contact
  - resemble one another anatomically, differing only in minor details
  - see colors, but especially prefer red and other bright colors
  - seek higher ground
  - sneeze on occasion
  - walk using hindlimbs
* Any bird can have albinism - partial or full.
* DO have a patagium, divided into a metapatagium and a propatagium.
* Every bird has feathers and everything that has feathers bird
  - hatches from an egg
  - is an individual
  - needs quiet time when they are undisturbed
* Learn about birds
  - habitat, endangered birds, bird anatomy, orders of birds
  - the relationships between backyard plants and birds
* Look at and identify many birds and how to go bird watching.
* Many birds adore chili peppers.
* Many birds also enjoy laying on their backs while being petted under the wings and on the neck
  - have claws on their wings
  - live in the area and they depend upon the fish that live in the water
  - travel south
  - appear active and healthy even after being on an all-seed diet for years
  - appreciate suet in the wintertime, in addition to seed
* Many birds are VERY soft to the touch
  - able to stay in Saskatchewan all year
  - active during the day
  - also very sloppy when they bathe and splash drops of water outside the cage
  - animals which can fly
  - brown, green or grey
  - charming or impressive because of their plumage, their size or their flight patterns
  - either seed eaters or nectar eaters
  - essentially monogamous and mate for life
  - free-flying
  - insectivores
  - penguin predators
  - primarily seed eaters
  - quiet during times of energy demand, e.g. moulting
  - resident while others make short-distance migratory journeys
  - restricted to vocal sounds rather than songs or calls
  - sociable and exhibit a remarkable range of adaptive behaviors
  - sociable, especially when caged alone
  - social and live in large groups
  - territorial, especially in the nesting season
* Many birds are very sensitive to the toxic effects of insecticides
  - territorial, especially during nesting season
* Many birds avoid the inclement weather altogether by flying south to milder, always summer climes
  - very soft snags for nesting because extremely soft wood can be wet or crumbly
  - become more sociable to improve their chances of survival during cold weather
  - begin to build nests
  - belong to the large family of birds known as plovers
  - breed in the taiga in the spring and summer
  - build nests in cactus stems
* Many birds can also get that far just flying
  - detect polarised light
  - identify mates or other group members by voice alone
  - sense oncoming storms and modify foraging behavior accordingly
  - spend most of their time on a play pen or parrot perch
  - survive in a variety of environments
* Many birds choose pylons as a place for resting
  - to build nests and raise their young
* Many birds come on a daily basis and some arrive at the same time each day
  - to the spot during the fall and winter
  - communicate by sexual display before their mates
  - consume the sweet pulp
* Many birds depend on insects as their main diet
  - in and around our backyards
* Many birds depend upon insects
  - rushes and grasses for their nesting materials and for cover
  - die at a young age from malnutrition or diseases related to malnutrition
* Many birds eat butterflies and moths
  - carrion
  - crane flies
  - holly berries
  - insects so avoid using pesticides around the garden
  - insects, focusing on what is most abundant at any particular time
  - more than one thing
  - primarily fruits and berries
  - enjoy perching on it before their drink or bath
  - expect to be fed at a certain time every day
  - face significant declines across the country
  - feed heavily during nesting periods
* Many birds feed on berries and distribute the seeds
  - garden spiders, as do some parasitic wasps and ants
* Many birds feed on insects hiding in tangled poison ivy vines
  - in the tangled vines
* Many birds feed on the fruits
  - rich flower buds of trees
  - find dripping or running water to be irresistable
* Many birds find the seeds of perennials particularly tasty
  - suet when they use the branch as a perch on their way to the other feeders
* Many birds fly in flocks
  - over, and they are around
* Many birds fly south during winter
  - to different places at certain times of year
* Many birds follow a temperature gradient as they return to nest in the spring
  - mountain ranges, sea coasts, and rivers during migration
  - get salt picking at leaves
  - go for berries in a big way
  - hatch their eggs asynchronously while other species are more synchronous
* Many birds have a colored head, throat, breast, or rump
  - homing instinct
  - stigma on all large follicles
  - winter plumage and a breeding plumage
  - almost no feathers on their backs
* Many birds have an eye on each side of their head
  - oil gland at the base of the tail
  - barbs that are combined together with tiny hooks known as barbules
  - bright, ornamental plumage
  - courtship rituals
  - distinctive stripes or colored patches on the head
  - hollow bones to reduce their weight
  - mild to severe splenomegaly
  - strong beaks designed to crack open hard seeds
  - their breeding season during that period
  - to be stabilized prior to blood sampling
  - wild rice in their diets
  - imitate the songs of other species
  - inhabit the wetland areas
  - join in duets and choruses, comparable to group singing by humans
  - lay eggs which exhibit very great variations
* Many birds learn their song by listening to the notes of other birds
  - songs by imitating adults, creating local song traditions
  - leave the northern latitudes for our mild winters
  - like to be stroked around the head and neck
* Many birds like to eat a bit higher than ground level
  - worms
  - look for food on the ground under the protection of dense, twiggy shrubs
  - make their nests in birdhouses or nest boxes
  - limit the number of eggs
* Many birds live in the canopy of rainforests
  - upper canopy, like toucans, hummingbirds and parrots
  - towns and cities
  - trees and bushes
* Many birds live on insects or on fish
  - seeds that they gather from plants or on the ground
  - to be much older
  - lose the ability to fly on islands without carnivorous cats or bears
  - love cheeses and yogurt
* Many birds love to preen in the sun and groom their plumage after a bath
  - snuggle in a warm fuzzy bird bed
  - water and when out of their cage love to take baths
* Many birds make long journeys twice each year as they migrate between their winter and summer homes
  - persimmon fruit a part of their diet
  - their home in South Florida
* Many birds migrate , such as geese and storks
  - from a cold area to a warm area each year
  - in the early winter
  - north or south
  - southwards in winter, reaching as far as Central America and the West Indies
  - thousands of miles, twice a year
  - to south for the winter
  - up and down the Mississippi Valley, and along the Atlantic coastal plain
  - moult once every year
* Many birds nest at the south end of the lake
  - close to human habitations and some have been specially encouraged
  - in the woods including woodpeckers and starlings
  - off cliffs because cliffs are high up and difficult for predators to reach
  - right on the ground
  - often die, particularly young birds
  - perform elaborate courtship dances
  - perish during migration and the winter season
* Many birds possess a muscular pouch along the esophagus called a crop
  - an additional organ anterior to the stomach known as the crop
* Many birds prefer cleared areas over closed forests for nesting and feeding
  - feeding on or near the ground
  - receive vitamin and mineral supplements as well
  - relish the larger, harder seeds such as oil and striped sunflower seeds
* Many birds rely on deep forests to escape predators and competitors
  - the tide uncovering the mud flats so that they can feed
  - remain year-round in several parts of the country
  - remove their waste in such a way as to prevent bacterial growth and disease
  - require native blossoms daily, as well as other special foods
  - respond favorably to limited grazing, including killdeers and meadowlarks
  - scream because they're bored or anxious
  - search the flowers and foliage of trees and eat the insects they find
  - seem to prefer the higher-pitched voice of women and children
  - show remarkable, specialized hearing abilities
* Many birds sing in the evening
  - or chirp as they move around
  - spend the winter in Africa
* Many birds spend their entire lives in their natal flocks
  - winters in our area after having migrated from nesting areas in the north
  - start to incubate before all eggs in their clutch have been laid
* Many birds stop at the lagoon in the fall during their migration south for the winter
  - to eat on the mud flats while on their way south
  - store food
  - summer on the tundra, including Canada geese
* Many birds take advantage of Earth's magnetic field to navigate the globe
  - flight for a last time
  - turns sitting on the eggs, so that each adult can feed
  - travel thousands of miles, some on a journey they have never been on before
* Many birds use a combination of calls and songs in addition to displays to attract potential mates
  - different habitat types throughout the year
  - estuarine habitats as shelter areas during nesting season
  - old woodpecker holes or natural cavities exclusively
  - plant parts like twigs and sticks to build nests
  - stars at night
* Many birds use the moon, sun, and stars to find their way
  - shoreline as a migratory path
* Many birds use the swamp only to roost at night
  - to roost as well as feed
  - wetlands as resting grounds during migration
  - wings to fly from place to place
  - vary in their abundance from year to year, sometimes to a considerable degree
  - visit it year round for insects
* More birds are socially monogamous than any other group
  - die of overheating during shipment than of any other cause
* Most Birds have bones that are structurally very light
  - bird pollinated flowers are red and have a lot of nectar
  - birds abandon their young at birth
* Most birds adapt to areas
  - arid habitats
  - very well to human contact and activity, pets, etc
* Most birds also have the ability to fly
  - prefer the color of natural wood
  - appear in skies
* Most birds are able to fly
  - attracted to a natural looking nest box
  - beings which are capable of flight
  - carnivorous meaning that they eat flesh, at least some of the time
  - chickens
  - classified as monogamous organisms
  - dimorphic, with feathers of one color for males and another color for females
  - diurnal
* Most birds are inside bushes
  - juventiles, born just months ago
* Most birds are located in forests
  - hills
  - regions
  - woodlands
  - migrants which come to nest or to stop over on their way farther north or south
  - monogamous, having only one mate per breeding season
  - night blind, and have little hope of escaping an attack by a cat at night
  - omnivores
  - ready to leave the nest before they can fly or take care of themselves
  - resistant to the encephalopathy that occurs in some infected horses and humans
  - small objects, some are quite tiny
  - territorial and protect the area around their nests
  - thought to return near where they hatched to breed
  - arrange the bases of feathers in tracts with spaces in between
* Most birds avoid exposure
  - belong to families
  - breed during the day
  - breeding in North American forests during the summer are neotropical migrants
* Most birds bring food
  - their own nest material
* Most birds build nests out of twigs and grass or mud
  - woven of grasses, small twigs, and other materials
  - can dissipate about half of their resting heat production by panting
* Most birds can fly , some swim , and some do both
  - and a penguin bird
  - obtain water directly by drinking
  - only sing the songs of their species, but there are exceptions
  - perceive sweet, sour, and bitter tastes
  - recover in a short amount of time
  - care for chicks
* Most birds carry bacteria
  - genes
  - parasites
  - worm eggs in their defecations
* Most birds catch fish
* Most birds change aspects
  - positions
  - chew anything they can get their beaks on
  - choose mates
  - collect fruit
* Most birds come from environments
  - shelter habitats
* Most birds come to bird feeders
  - conserve energy
* Most birds consume berries
  - dragonflies
  - high quality food
  - proteins
  - substances
  - cross boundaries
  - delay starting incubation until the clutch is complete
* Most birds depend on ecosystems
  - flyways
  - sources
  - vegetation
  - water sources
* Most birds descend from ancestors
  - reptiles
  - develop lungs
  - digest food
  - dip their bills and then tip their heads back and swallow
  - do the same thing, by tucking their feet and legs beneath their tummy feathers
  - dont have teeth
* Most birds drink by dipping their bill in water and throwing their head back to swallow
  - fresh water
  - liquids
  - salt water
  - sea water
* Most birds eat a variety of things including fruits, vegetables, pasta, breads
  - acorns
  - animal food
  - aquatic insects
* Most birds eat attractive berries
  - red berries
  - bait
  - balance diets
  - baobab fruit
  - beetles
  - bird seeds
  - blackberries
  - bugs
  - certain food
* Most birds eat commercial bird seeds
  - crops
  - dry food
  - earthworms
  - ferment fruit
  - fresh food
  - fruit seeds
  - grain
  - grasshoppers
  - harmful insects
  - larvae
  - liquid food
  - locusts
  - mealworms
  - mice
  - privet fruit
* Most birds eat red berries
  - relatively large quantities of food in proportion to their body weight
  - small seeds
  - emerge from eggs
  - encountered in spring are in breeding plumage
* Most birds enjoy daily bathing
  - meals
  - enrich the land by their presence
* Most birds enter forests
  - territory
* Most birds establish breed territory
  - own territory
* Most birds establish pair bonds in late fall when flocks form
  - the late fall when winter flocks form
  - evolve from theropods
* Most birds exhibit behavior
  - breed behavior
  - courtship behavior
* Most birds extend legs
  - necks
* Most birds feed babies
* Most birds feed in fields
  - meat diets
* Most birds feed on berries
  - fly insects
  - fruit berries
  - protein diets
  - shoots
  - slugs
  - small fish
* Most birds feel vibration
  - wind
* Most birds find animal food
  - partners
  - sanctuaries
* Most birds fly over cities
  - countries
  - gardens
  - marsh
  - oceans
  - valleys
  - within a few hundred feet off the ground
  - fold wings
  - form pairs
  - gain weight
* Most birds get food
  - nutrients
  - plumages
  - sharp teeth
* Most birds give birth to chicks
  - offspring
* Most birds go through a molting stage once a year when they lose all of their feathers
  - distinct stages
  - several stages
  - grab prey
  - grow cells
  - habitually fly at speeds much less than their maximum
* Most birds has-part bones
  - brains
  - cerebrums
  - extremities
  - gizzards
  - hearts
  - skeletons
  - skin
  - throats
  - tracheae
  - veins
  - vertebrae
* Most birds have a beak that is stiff and hard the whole length
  - limited intake of fresh water
  - poor sense of smell, just like humans, yet get along just fine
  - relatively poor sense of smell, about the same as humans
  - terrible since of smell
  - active enzymes
  - adequate water
  - adult plumages
  - air sacs
  - amaze eyesights
  - an arrangement of three toes forward and one backwards
* Most birds have an oil gland at the base of their tails
  - on their rump at base of the tail
  - appearances
  - arteries
  - backbones
  - beautiful feathers
  - bilateral symmetry
* Most birds have black beaks
  - blood feathers
  - blue plumages
  - bluish wings
  - body temperature
  - breasts
* Most birds have bright beaks
  - orange feathers
  - red eyes
  - yellow beaks
* Most birds have brown feathers
  - hues
* Most birds have brownish eyes
  - chambers
  - chest muscles
  - chins
  - coloration
  - colorful feathers
  - common ancestors
  - compounds
  - coronary arteries
  - crests
  - curves
* Most birds have dark beaks
  - red color
  - undersides
  - defense mechanisms
  - delicate bones
* Most birds have different coloration
* Most birds have distinctive ability
  - features
  - eight air sacs
  - enlarge glands
  - experience
  - external sex organs
  - eyelids
  - eyes on their sides of their head
  - fertilization
  - few feathers
  - flat sterna
  - flexibility
* Most birds have four toes on their feet
  - toes, three that face forward and one rearward
* Most birds have glossy black plumages
  - green heads
* Most birds have good diets
* Most birds have gray areas
* Most birds have green feathers
  - growth curves
  - guts
  - habits
  - hatchlings
* Most birds have hollow bones for low weight
  - so they weigh less and make flight possible
* Most birds have hollow bones to make their bodies light enough to become air-borne
  - reduce weight to make flying easier
  - inner chambers
* Most birds have internal fertilization but external development
  - intestines
  - joints
  - keen eyesight and are considered day birds, as they are active during the daytime
  - keener eyesight than humans do
  - kinds
  - kinetic skulls
* Most birds have large beaks
  - breast muscles
  - hook beaks
  - yellow bills
  - legs long enough to reach the tray below the grate
  - lifetime exposure
  - light brown eyes
  - linear structures
  - little or no sense of smell
* Most birds have long legs
  - tongues
  - low reproductive output
  - lung capacity
  - maximum amounts of that variety that can be ordered
  - memory
  - metabolism
  - mouths
  - muscular tongues
  - nasal glands
  - natural predators
  - nest sites
  - night vision
  - nine air sacs
  - no sense of smell at all
* Most birds have only four toes
  - one ovary and one oviduct
  - overall appearances
  - phenotypes
  - pink plumages
* Most birds have poor night vision
  - powerful beaks
  - ravenous appetite
  - receptors
* Most birds have red color
* Most birds have reproductive output
  - success
  - round tails
  - salt glands
  - senses
* Most birds have sharp beaks
  - short beaks
  - shrill calls
  - single fovea
  - skeletal structures
  - slender bills
  - social life
  - solid bones
  - spectacular plumes
  - splendid feathers
  - strategies
* Most birds have strong breast muscles
  - stun plumages
  - surface areas
  - sweat glands
  - swell throats
  - tendencies
  - thick necks
  - thin tendons
  - third eyelids
  - three toes that face forward and one that faces the other way
  - toothless beaks
  - two ranges of flying speeds
  - values
  - various functions
  - very little sense of smell and only care how their babies look and sound
  - voices
  - watery eyes
  - white plumages
  - wide ranges
* Most birds have yellow beaks
  - or whitish lores and eyebrows, a pale crown stripe and a dark whisker stripe
  - hear prey
* Most birds help ecosystems
  - hide in trees
  - inhabit urban areas
* Most birds kill insects
* Most birds lack teeth and have a reduced tail
* Most birds lay about every second or third day
* Most birds learn characteristics
* Most birds lift backs
* Most birds like to feed by themselves
  - hop down into the gourd, therefore, place the entrance hole in the upper portion
* Most birds live for many years
* Most birds live in Africa
  - communities
  - same places
  - small areas
  - worlds
* Most birds live on beaches
  - continents
  - shores
  - look for places
* Most birds look like birds
  - dinosaur birds
* Most birds lose feathers
  - pin feathers
  - tail feathers
* Most birds love environments
  - pomegranates - particularly the seeds
  - to drink and frolic in shallow pools of water
* Most birds maintain territory
* Most birds make a sort of flapping, swooshing sound when they fly
  - bonds that last through the breeding season
  - coo sound
  - foot strides
  - little noise
  - many trips per day away from their nest to find food
  - movement
  - nests, and spend their time foraging to feed and care for their chicks
  - racket
  - sounds because they are genetically designed to do so
  - terrible sound
  - thrust movement
  - unusual sound
  - mate by contact at the cloaca area
* Most birds migrate for the winter due to the lack of food sources and the climatic conditions
  - south to their wintering grounds in the Gulf Coast, Mexico, and Central America
* Most birds migrate to coastal regions
  - warmer climates
* Most birds molt completely at least once a year
  - either once or twice a year
  - once a year, usually in late summer, after the nesting season
  - moult by replacing a few feathers at a time
* Most birds move eggs
  - into areas
  - somewhere as the seasons change
  - naturally avoid webs
  - nest same places
* Most birds obtain enough food
  - occupy areas
* Most birds occupy different areas
  - geographic areas
  - residential areas
* Most birds occur in environments
  - forest habitats
  - great lake regions
* Most birds only close their eyelids during sleep, and use the third eyelid alone for blinking
  - have one functional ovary
  - perch on wire
* Most birds pick up organisms
  - play important roles
* Most birds play in flight
  - pollinate trees
  - pose a minimal risk for transmitting disease
* Most birds possess balance
* Most birds prefer a specific habitat for feeding or nesting
  - brushes
  - deciduous trees
  - dining on the flies
  - evergreens
  - grassland
  - multi-stem plants that form a dense canopy
  - oak woodlands
  - open grassland
* Most birds prey on animals
  - domestic animals
* Most birds prey on large animals
  - game animals
  - small animals
  - probably employ a combination of systems
* Most birds produce offspring
  - some sort of vocal sound
  - strange sound
  - provide food
* Most birds raise babies
* Most birds reach adulthood
  - height
  - maturity
  - sexual maturity
* Most birds receive food
  - recover well when treated promptly
  - regurgitate food
* Most birds relate to dinosaurs
  - fowl
  - pheasants
  - release eggs
* Most birds rely on instinct when they migrate
  - remain too distant from the ridge to see with the naked eye
* Most birds represent dinosaur lineage
* Most birds require air
  - lots of energy, so their bodies use up the food they eat very quickly
  - oxygen
  - resemble birds
  - respond emotionally to melodious voices in soothing tones
  - rest on ledges
  - return springs
* Most birds return to locations
  - same nest sites
  - returning from the wintering grounds take a new mate each year
* Most birds ride updrafts
  - roost in trees
  - rotate wings
* Most birds seek eggs
  - seem to like the water shallow
  - seize worms
  - select nest sites
  - serve as hosts
* Most birds shake beaks
* Most birds share ancestry
  - several characteristics
  - shed feathers
* Most birds show a definite preference for soaked seeds
  - diversity
  - significant discoloration to the muscles around a fracture site
* Most birds sit in bushes
* Most birds sit on branches
  - fences
* Most birds sleep at night, although there are some, like owls that sleep during the day
  - in trees and bushes the rest of the year
  - spend much of their time in the air
* Most birds spread feet
* Most birds stand on feet
  - start their migration along the coast
  - steal food
  - store fat only in furcular and abdominal regions
* Most birds suffer from calcium deficiencies
* Most birds survive accidents
  - breed seasons
  - events
  - extinction events
  - first years
  - hunt seasons
  - nights
* Most birds take breaths
  - first flight
  - short naps during the day, as well
  - steps
  - tend to fly higher when crossing large bodies of water than when flying over land
* Most birds thrive in environments
  - on attention and human interaction, but wither with neglect
  - try to bathe in their water bowls
  - turn heads
* Most birds undertake journeys
* Most birds use a combination of gliding and beating of the wings to keep airborne
  - gravity
  - keen senses
  - plants to make nests
  - powerful legs
  - razor claws
  - sharp claws
  - strong muscles
  - talons
  - thermal air current
  - warm air current
  - usually leave and return along the same route each day
* Most birds visit backyards
  - wait for prey
  - walk on feet
* Most birds watch chickens
  - weigh pounds
* Some birds absolutely love egg yolk and others merely eat it
  - actively cooperate with other species
* Some birds actually have feet adapted to walk on the surface plants
  - nest on the ground, and intentionally lay their eggs there
* Some birds adapt certain characteristics
* Some birds adapt to conditions
  - specific food sources
  - such conditions
* Some birds adjust themselves to special environments
  - to a home and people readily, while for others it takes weeks and months
  - adopt different strategies to gain living space
* Some birds also bury their eggs in the same way
  - die after ingesting oil during attempts to clean themselves
  - eat eggs and juvenile robins
* Some birds also have an enteritis and a vent discharge
  - sinusitis
  - wattles, which are naked folds of skin that hang down from the mandibles
  - prefer a site for privacy, such as a paper bag, a towel, or a nest box
  - protect a larger feeding territory
  - seem to do a great deal of gesturing prior to resorting to a physical attack
* Some birds also take longer to learn to talk than others
  - on helpers to help rear their young
  - apparently feel the same way about eating insects that have been exposed to insecticides
* Some birds appear in islands
* Some birds appear to have eyelashes
  - reduce flight speed in proportion to the degree of assistance or resistance
* Some birds are able to fly with only one primary feather
  - survive the winter by flying south where it is warmer and easier to get food
  - also poisonous to cats
  - as pure yellow as a buttercup flower
  - better at making nest than others
  - big and powerful enough to be able to patrol the grassland without relying on flight
  - breed in backyards
  - eaten as food
  - indicator species
  - insect eaters, while others prefer eating fruit, nuts, or berries
  - inside barns
* Some birds are known as doves
  - to tolerate the fruits
* Some birds are located at feeders
  - societies
* Some birds are located in Africa
* Some birds are located on ledges
  - mated for life, like married couples
  - member of families
  - migratory, spending only part of the year in Georgia
* Some birds are more cautious about new people or objects in their environment than others
  - efficient at holding the fruit with a foot while eating, just like parrots
  - likely than others to eat fruits and popcorn
  - sensitive to zinc at lower levels than others
* Some birds are naturally friendly to just about everyone
  - more shy and less social than others and take longer to warm up to people
  - nearly self-sufficient when they hatch
  - noisier than others
  - noisy
  - of sufficient rarity that they attract attention from far and wide
  - paper chewers
  - pets, like budgies and canaries
  - picky eaters
  - polygamous and take more than one mate in a season
  - potentially responsible for intentional fire propagation to flush out prey
  - scavengers and eat the bodies of creatures that have died
  - seed eaters and actually enjoy some seeds much better than others
  - seed-eaters, others eat fruit, some eat insects, and some flower nectar
  - still molting
  - tamer than others
  - turkeys
  - vegetarians, some prefer meat, and some eat both
* Some birds are very bold, stay on a feeder for a long time and eat a lot
  - fond of grass seed
  - noisy and can be a nuisance to close neighbors
  - winter visitors from further north and east, e.g. Finland, Sweden and Norway
  - attack persistent intruders
  - attain weight
* Some birds attract animals
  - viruses
* Some birds become abundances
  - incubations
  - magpies
  - pests
  - prey of certain mammals, primarily the Arctic Fox
  - so animated and persistent that they injure themselves
* Some birds break bones
  - breast bones
  - breed, and others simply help raise the young
* Some birds build nests or peck out cavities in trees
  - out of twigs and grasses
  - their nests with incredible rapidity
  - bury eggs
* Some birds call a lot, others only yelp or cluck a couple of times
  - frequently with long uninterrupted yelps, while others only yelp a couple of times
  - can 'glide' on air currents without flapping
* Some birds can also 'hover' and remain in one place
  - 'sing'
  - be very expensive where prices soar into the thousands
  - express affection on the same level as cats or dogs
  - float on water and live near oceans, lakes or rivers
  - handle larger toys and some play gently
  - imitate many nonavian sounds, including human speech
  - mimic sounds
  - only exist in specific habitats
* Some birds can sit out storms at sea
  - on the water surface
* Some birds capture prey
  - small invertebrates, sand shrimps and sea lice
* Some birds carry bodies
  - diseases such as salmonella or chlamydia
  - something
* Some birds cause accidents
  - crop damage
  - death
  - psychological damage
  - significant crop damage
  - so much damage to rice crops that they are considered agricultural pests
* Some birds change habitats
  - migration patterns
  - chew branches
* Some birds choose a route that requires multiple days of non-stop flight over water
  - to vear west across South America and end along the coast of Peru
  - claim territory
  - collect sticks
* Some birds come from as far as Siberia in the Soviet Union
  - completely recover either with or without treatment
  - consist of seeds
* Some birds consume clams
  - juniper
  - palm fruit
  - pollen
  - rocky mountain juniper
  - seawater
  - snakes
  - contract a gizzard ailment
  - control pests
* Some birds create a nest for the purpose of raising young birds
  - messes
  - nest for the purpose of shelter or sleeping
* Some birds cross fences
  - roads
* Some birds defend nest sites
* Some birds depend on forests
* Some birds derive from ancestors
  - destroy crops
* Some birds develop a swollen, mucus-filled crop
  - adaptive strategies
  - symptoms
  - die after being crushed by machinery or vehicles operating near the unloading area
* Some birds die from cerebral paralysis
  - injuries
* Some birds die in collisions
* Some birds die of infection
  - secondary infection
  - shortly after showing signs of PBFD while others live months to years
  - without signs being noticed
  - dive for food
* Some birds do construction
  - fall prey, however, and their commonest enemies are kites and falcons
  - it, and some reptiles as well
  - jobs
  - without a nest altogether
  - double and even triple their weight on horseshoe crab eggs
* Some birds drink artificial seawater
* Some birds eat Japanese beetles
  - aquatic vegetation
  - bark beetles
  - bees
  - berries from bushes
  - centipedes
  - cherries
  - chipmunks
  - cobs
  - common caterpillars
  - corn cobs
  - dead animals
  - gobies
  - grapes
  - gravel
  - grubs
  - hairy caterpillars
  - krill
  - lizards
  - marine fish
  - mollusks
  - mosquitoes
  - numbats
  - nutrias
  - particles
  - raptors
  - rats
  - rhinos
  - ripe strawberries
  - seeds, some eat fruit and many eat insects, particularly during the summer
  - sunflowers
  - thrushes
  - tortoises
  - tubers
  - turtles
  - eats twicetheir body weight each day
  - emerge from the egg more ready to take on the world than others
* Some birds enjoy cages
  - carrot juice
  - ropes or wooden toys to peck at
* Some birds enter environments
  - live rooms
  - orchards
  - establish sites
* Some birds even feed it to their young
  - plastic debris to their young
  - make tools
  - require a quiet time or nap during the day
* Some birds evolve from carnivorous dinosaurs
* Some birds evolve from small carnivorous dinosaurs
  - theropod dinosaurs
* Some birds exhibit diarrhoea
  - parental care
  - reaction
  - sexual behavior and even build nests
  - strong instinct
  - fail to molt symmetrical and become somewhat handicapped for months
* Some birds feed all their young equally, while others feed the biggest
  - almost exclusively four feet or more above ground level on elevated feeders
* Some birds feed in environments
* Some birds feed on animals
  - aquatic animals
  - bivalves
  - chestnuts
  - creep juniper
  - earwigs
  - estuaries
  - live prey
  - nectar and so help pollinate flowers
  - persistent fruit
  - quail chicks
  - small mammals
  - snails
* Some birds feel eggs
* Some birds find gardens
  - suitable nesting sites in the stonewalls or roofs of old sheephouses or barns
  - their food by touch in the dark
* Some birds float in lakes
  - ponds
* Some birds fly and some birds swim, but all birds have feathers
  - for weeks to get to their winter homes
  - high Some birds fly low Some birds live on the ground And some below
* Some birds fly over beaches
  - streams
  - threats
* Some birds fly south for the winter , but there are always birds around all year
  - in the winter and other birds stay in Canada
  - spontaneously in the wind tunnel once released by the experimenter
  - to water holes at dawn and sunset
* Some birds follow coastlines to avoid flying over large bodies of water
* Some birds form a hollow or use a pre-existing hollow in a tree for a home
  - strong bonds
  - term bonds
* Some birds get light
  - pest rodents
* Some birds give birth to animals
  - go through many bird bands in their lifetime
* Some birds go to farms
  - graze in environments
* Some birds harass birds
  - blue birds
  - bright blue birds
  - hawks
* Some birds has-part thymuses
  - wombs
* Some birds hatch several broods each year
  - with their running shoes on
* Some birds have a beautiful song
  - nomadic lifestyle, following fruiting trees
  - stronger instinct than others
  - tan supercilium and browner head than the more common white-striped form
  - whitish tip to the bill
* Some birds have an appendix or cecum which helps in the digestion of grains and fibers
  - expansion of the esophagus called the crop
  - beaks specially designed to crack open conifer cones, thus spreading the seeds
  - bills just right for catching fish
  - black wing tips
  - blue feathers
  - both splashes and white flight feathers
  - bronze
  - buffs
  - cheek
  - cloacas
  - close relatives
  - collars
  - cracks
  - diarrhea
  - dietary preference
* Some birds have different dietary preference
  - difficulty consuming snow as a source of water and thus fresh water is preferable
  - disorder
  - division
  - energy requirements
  - evolutionary fitnesses
  - facial stripes
  - fear
  - fungal infection
  - gases
  - genetic disorder
  - insulate layers
  - lifespans
  - light chests and dark bellies, while in others the pattern is reversed
  - liver damage
* Some birds have long lifespans
  - many ways
  - mate dances
  - membranes
* Some birds have more advanced cases than others
  - feathers than others
  - muscle paralysis
  - natural enemies
  - niches
  - night fright
  - numbers
  - obvious injuries
  - ornamental outgrowths, characterized by thickened skin that has many blood vessels
  - other creatures
  - parakeets
  - phenomenal capacity for spatial learning
  - point toes
  - poor feather condition because they are unable to preen
  - reputations
* Some birds have respiratory distress
  - tract infection
  - several ways
  - shoulder patches
* Some birds have small spots
  - white spots
  - special glands that secrete a concentrated salt solution
  - specific niches
  - strong teeth
  - sweet teeth
  - testes
* Some birds have the ability to find their way back if they are displaced
  - bills crossed one way, and some the other way
  - tufts, which are really unique, but more often have muffs or beards or both
  - unusual habits
  - very fine feathers that are almost impossible to get off
  - vocabulary
  - warmth
* Some birds have white cheek
* Some birds have wing patterns
  - wounds
  - yeast infection
  - hear dogs
* Some birds help forests
  - populations
* Some birds hide in forests
  - their nests at the tips of twigs amid the dense outer foliage of trees
  - hug the earth, floating at treetop level
  - hunt other animals
* Some birds inhabit grassland
* Some birds invade gardens
  - join flamingos
  - just eat insects and so like a pond
  - keep companies
* Some birds kill birds
  - songbirds
  - know as raptors
* Some birds lack diaphragms
  - lay each egg in a different nest
* Some birds learn quicker than others
  - to fish
* Some birds leave areas
  - breed areas
  - the swamp to find food
* Some birds like to be misted with spray
  - sprayed with water from a spray bottle
  - decorate to attract a female
* Some birds like to eat from the ground
  - suet, nuts, or fresh fruit, as well
  - play with toys a lot
  - sleep in a happy hut which is basically a hanging tent
  - use bird baths on the ground
* Some birds live in Alaska
  - Australia
  - Egypt
  - Guyana
  - Illinois
  - Kansas
  - Kenya
  - Panama
  - Spain
  - a crack in houses
  - bays
  - close association with horses
  - colonies
  - counties
  - deserts
  - homes that humans provide
  - huge colonies
  - meadows
  - mountains
  - neighborhoods
  - parks
  - provinces
* Some birds live in the trees, and some love lakes, but the meadowlark bird of the grassland
  - some by the shore
  - tropical temperature
  - wildernesses
  - zoos
* Some birds live on Antarctica
  - prairie
  - savanna
* Some birds locate prey
  - suitable prey
* Some birds lose ability
  - beauty
  - breed plumages
* Some birds love families
  - shiny things like wrappers and trash
  - to eat the bugs that live in dead trees
  - watermelon
* Some birds maintain body temperature
  - posture
* Some birds make bird food
  - good pets
  - incredible flights
  - it three years or longer
  - many different calls
  - no nest at all but lay their eggs directly upon the ground
  - nuisances
  - song flights always in a specific form, hovering or descending in a particular way
* Some birds make their nests on the ground, some in bushes, some in trees, and some on cliffs
  - out of mud or rubbish, twigs and things like that
* Some birds migrate as far south as southern Mexico and Honduras
  - the day length shortens and before it gets very cold
  - during the day while others fly at night
  - from the artic to the antartic, each year returning to exactly the same nest
  - instinctively or use the stars to navigate their way south in winter
  - southeast from breeding range to winter near Gulf Coast
  - through the area on their way to and from their nesting grounds
* Some birds migrate to Asia
  - California
  - nest high, others on the ground
* Some birds nest in colonies
  - extreme locations to avoid threats from predators
  - hollow tunnels
  - loose colonies
  - small colonies
  - the living tree
  - near protective insects or animals to reduce their risks of predation
* Some birds nest on cliffs
* Some birds nest on rocky cliffs
* Some birds never have their cage covered while others have their cage covered at night
* Some birds occupy dry forest life zones
* Some birds occur in density
  - low density
  - only pass through Wisconsin in spring and fall
  - peck holes in trees and peck at the dirt to find food
* Some birds perch on one leg, drawing the other leg to the breast for warmth
  - drawing the other leg up to their breast for warmth
  - windowpanes
* Some birds pick up ants
  - play continuously while others show no interest in additional objects in their mews
* Some birds play in countries
  - only with loose toys they can carry around when they are outside of the cage
  - pose threats
* Some birds possess certain diseases that can be deadly for cats
  - microbes
  - nature
* Some birds prefer diets
  - feeding on the ground, and others prefer higher up
  - fens to other habitats for feeding and breeding
  - landscapes
* Some birds prefer to be misted while others like bathing
  - eat from the ground, while others prefer hanging feeders
  - feed on the ground, others on elevated platforms
  - take cover in evergreen groves, while others prefer dense, twiggy shrubs
* Some birds prey on anoles
  - desert tortoises
  - ducks
  - green anoles
  - probe deeply into the sediment, others take food from the surface
* Some birds produce acid
  - consumption
  - oxygen consumption
* Some birds provide fertilizer
* Some birds raise chicks
  - cuckoo chicks
  - range over a number of habitats , but many are found in only one environment
  - react positively to music
* Some birds receive corn
  - feed rations
  - relate to magpies
  - rely on snails
  - remain constantly at one location
* Some birds remain in couple all life long
  - with parents
* Some birds represent nations
* Some birds require acid
  - free time outside of the cage
  - several days
  - special care
  - vitamins
* Some birds resemble hens
  - loons
  - swans
* Some birds rest on marsh
* Some birds return to cages
  - lofts
  - reuse the nests of other species
* Some birds roost in cattails
  - willows
* Some birds see mealworms
  - monkeys
* Some birds seek insects
* Some birds serve as pests
  - sentries, scanning the horizon for predators and calling out warnings
* Some birds share backyards
  - seasides
  - shift between Humboldt Bay mudflats and lowland pastures according to the tide
* Some birds show bruise
  - deposition
  - no signs of disease
  - quite astonishing powers of recall
* Some birds simply refuse to eat pellets
  - use land marks or geographical sites
* Some birds sing at unnatural hours in the presence of artificial light
  - same songs
  - sing, some birds fly
* Some birds sit in habitats
* Some birds sit on edges
  - logs
  - stones
  - wildflowers
  - sleep resting on a branch, while others find a nest or birdhouse to sleep in
  - spend more time on wintering grounds and migration than here on breeding grounds
* Some birds spread microbes
  - stand in barns
* Some birds stand on heads
  - over the eggs to provide shade
  - starve to death
* Some birds stay at the higher elevations of the foothills
  - mostly overhead in the tall treetop canopy seeking food and prime nest sites
  - on the weeping willows
  - together for life
  - stretch necks
* Some birds suck flowers
  - suffer internal damage
* Some birds survive weather
* Some birds swim in groups
  - switch the first day, others are slow to accept a new food
  - swoop down and pick off the hatchlings as they rush across the beach
* Some birds take a little extra effort to attract
  - tend to be noisier than others
* Some birds thrive in Africa
  - transmit viruses
* Some birds travel at high altitudes while others fly low
  - better than others do
  - in flocks, so the adults teach the young
  - turn into pets
* Some birds use a variety of stitches and knots to hold their nests together
  - an opposite strategy, reducing their body temperature during periods of inactivity
  - cacti
  - deterrent
  - distraction to defend their young
  - epiphytes
  - external heat
  - lichens to build nests
  - magnetic fields
  - metabolic heat
  - mud to construct their nests
* Some birds use nest boxes or tree cavities in winter as roost sites
  - stars to orientate themselves during migration
* Some birds use the boxthorn for protection from predators
  - marsh as their resting place when flying south for the winter
  - same nests they have occupied in previous years
* Some birds use their half-spread out wings in a flying motion to swim in water
  - outstretched feet to land
  - tools to assist their feeding activities
  - visual deterrent
* Some birds visit feeders
  - flowers for different reasons
  - wait for grasshoppers
* Some birds walk in the shallows, picking up tasty morsels as they go
  - on toes
* Some birds watch birds
  - weigh lbs
* abandon deciduous tree roosts when the leaves drop in the fall.
* abound on Rookery Island and other small islets of land uninhabited by man.
* accumulate fat and protein reserves by eating more and by being selective in what they eat.
* add natural interest, colour and sound to the bush
  - sound to color thereby enriching our experience of beauty
* adjust their feathers to create or dissipate an insulating layer, as typified by the ostrich.
* also avoid viceroy butterflys, although they are good to eat
  - become accustomed to the repeated use of scare devices over time
  - break up sounds into categories, particularly songbirds
  - can appear to have difficulty walking
* also carry it
  - seeds in mud clinging to their feet
  - contribute to the balance of our ecosystem
  - depend on insects for food
  - display grace, speed and strength, attributes displayed by elite netballers
  - distinguish their mates by call
  - eat the bugs, plants and worms that crawl along crops and in the soil
  - entertain humans with their song
  - feast on coral reef animals
* also feed on lichens
  - the highly nutritious seeds produced by prairie plants
  - get a musical education from their parents
  - give birth to young with eggs
  - graze on the land and on the surface of the water
  - grind up their food with muscles in their stomach called a gizzard
  - groom each other
  - harvest blueberries, often the complete crop from a small planting
* also have a distinct large intestine and a cloaca
  - massive breastbone that is used to anchor the powerful flight muscles
  - taste for many garden plants
* also have a third eyelid called the nictitating membrane
  - eyelid, a nictitating membrane that protects their eyes
  - very well developed nervous system
  - air sacs, limited lung expansion, and air capillaries instead of alveoli
* also have an air sac system
  - inner eyelid, called a nictitating membrane
  - delicate bodies and bones which can be easily bruised, injured or broken
  - four-chambered hearts
  - intelligence so they use that as well as instinct
  - powerful flight muscles attached to a breastbone called a keel
  - two wings
  - unidirectional flow of air into and out of their lungs
  - waterproof feathers
* also lack several senses altogether
  - teeth or even a true jaw , instead having a beak , which is far more lightweight
  - lay eggs but they have a hard shell
* also like a bit of water and food, of course
  - to eat fruit and they help to disperse seeds to other areas through their droppings
  - live along the banks
* also love peas because the pea crop is one of the earliest available to feed their young
  - the seed of native grasses
  - lunge and bite, often holding onto an opponent's head or wings
  - make their home in the freshwater biome
  - molt, the process by which old feathers are replaced with new feathers
  - play an important part in destroying weed seeds and in scattering seeds to barren areas
  - produce such eggs
  - provide a useful perspective on brain size
  - remember what they've stored
  - represent messengers from higher powers, whether for good or ill
  - require water in winter
  - see with enormous accuracy and at long distances
  - seek shelter to hide from predators and protect themselves from the elements
* also serve a number of cultural roles and factor heavily into religions across the globe
  - as sources of blood meals
  - steer by changing their wing configuration
* also tend to cache seeds close to tree trunks where less snow accumulates
  - scatter their food, and feathers seem to be around all the time
  - turn their eggs with their beaks during incubation
* also use different sounds, songs and calls in different situations
  - experience to recognize predators by observing mobbing behavior in other birds
  - olives as perches during feeding and social activities
  - their ability to sense air pressure to determine when it's safe to migrate
* alter and improve their nests as men do their homes.
* always remain in the bird family and lizards are always in the lizard family.
* apparently can determine their longitude and latitude by the position of the stars.
* appear especially susceptible to hormonally induced changes in their behaviors.
* appear in many dreams, often trapped
  - to be more susceptible to infection by the virus than mammals
* appreciate shallow water.
* are a beautiful and important part of our natural heritage
  - blessed gift of nature that bring beauty to our eyes and harmonious songs to our ears
  - class of the chordates or vertebrate phylum
  - dead-end lineage
  - excellent indicator of the adverse effects of habitat fragmentation
  - favorite sound for many people - especially early in the morning
  - favourite disguise of gods when they come to visit mortal women
* are a form of urban wildlife which offers year-round enjoyment
  - wildlife found in urban, suburban and rural areas
  - grand species
  - part of the intricate web of nature
  - problem in all production areas
  - sentinel for West Nile Fever
  - source of fascination for children around the world
  - vital part of our natural heritage
* are able to find plenty of food during summer months
  - fly because of a variety of specialized adaptations
  - hear a wider range of sounds than humans
  - maintain a long-term infection
  - synthesize vitamin D but require an adequate amount of sunlight to do so
  - about pride and beauty as well
* are abundant, along with geckos and colorful insects
  - and make up the bulk of the endemic and native vertebrate species
  - particularly along the river courses and in the scrubland
* are actually specialised theropod dinosaurs
  - very hardy animals and tolerate conditions as well as any other animal
* are acutely sensitive to zinc which is used in the spray
  - adapted to living in diverse environments
  - adept at avoiding objects
  - afraid of dogs
  - alert and aware of their surroundings
  - all around all the time
  - almost all intensely visual animals
* are also a victim of West Nile Virus
  - able to focus their eyes very quickly which is essential during flying
  - amniotes, a group that includes the mammals, birds, dinosaurs, and reptiles
  - different sizes and come in large, medium, and small
  - endothermic
  - fairly easy to track
  - fond of the pine nuts
* are also important economically
  - members of the swamp community
  - indicators of how healthy the environment is
  - instrumental in providing bats with places to roost
  - nature's most efficient insect predator
* are also responsible for dispersing the seeds
  - the wide dispersion of seeds
  - safer when cats are kept indoors
  - sub-divided, with eagles above pigeons , for example
  - successful predators of garters
  - vulnerable to chemical pollution and biological poisoning from natural toxins
* are always on the look-out for predators
  - oviparous and reptiles are nearly always so
  - among the most easily observed wildlife
  - an excellent indicator of the fitness of the environment
* are an important economic factor as well
  - food source in coastal wintering areas, and in nesting season
  - indicator of environmental quality
  - part of alpine tundra communities
* are an important part of our daily lives
  - the kachina ceremonies
* are an integral part of our environment
  - anatomically correct and are in settings that are appropriate for their species
  - ancestors of a dinosaur by the name of theropods
  - animals that can travel large distances during migration
* are animals that have feathers and that are born out of hard-shelled eggs
  - feathers-peacock, sparrow, crow, pigeon
  - with beaks and feathers
  - artificial satellites
* are as common as people
  - much dinosaurs as bats are mammals
* are at home in the air
  - risk when preening wet feathers
* are attracted to heliconia fruits and are important in the plant's seed dispersal
  - red and yellow flowers
* are attracted to the fruits as a food source and help in dispersing the seeds
  - noise of flowing water
  - avian dinosaurs
  - beautiful and their extravagant plumages are dazzling to the eye
  - beneficial in being leaders in insect control
  - better off with other birds
  - bipedal, but no one suggests that they are closely related to humans
  - birds by reason of the same process
  - black with a white tail stained yellow with preen gland oil
* are capable of breathes
  - hatchs
  - perchs
  - traveling incredible distances in their migratory movements
  - classified by most paleontologists as belonging to the subgroup Maniraptora
  - common and more easily seen
  - complex creatures of habit
  - considered to be theropod dinosaurs
  - consummate communicators
  - covered in feathers instead of fur or hair and hatch from eggs
* are creatures of habit and are highly suspicious of new foods
  - they like their lives predictable
  - location, and no two locations are exactly alike
  - critical links in native ecosystems
  - defined by their feathers, beaks that have no teeth and their high metabolism
* are descended from one group of saurischians
  - lineage of small theropods and therefore are members of Theropoda
  - desperate for food in the weather when the ground and trees are frozen
* are different from humans in many ways
  - planes in that they are able to get both lift and thrust from their wings
  - difficult to manage because they are the most mobile of all wildlife
  - dinosaurs, but the African cryptids are likely to be a myth
  - dioecious with sexual reproduction and internal fertilization
  - diurnal and have a poor olfactory sense
  - diverse only in wetlands and in riparian vegetation along rivers
* are easier to catch for movement purposes, beak-trimming and vaccination
  - find in early morning
  - spot and include guans, trogons and quetzals
  - easily able to heat themselves because of a high rate of metabolism
* are endothermic amniotes
  - tetrapod vertebrates
  - with insulation provided by feathers and a fat layer
* are endothermic, capable of keeping the body warm through metabolism
  - using their own metabolic heat to maintain a constant body temperature
* are especially active in the early morning
  - colorful and abundant in the spring
  - sensitive to upset
* are even harder to photograph than animals
  - more sensitive to essential oils than cats
  - everywhere in our lives
  - excellent flagship species and vital environmental indicators
* are excellent indicators of the overall health of the environment
  - variety and conditions of habitats
* are exceptionally good indicators of environmental problems
  - susceptible to second-hand smoke
* are experts at hiding illnesses
  - their symptoms of disease
* are extremely particular about the height and diameter of the entry hole
  - sensitive to the toxins in the foggers
  - fairly unusual critters
  - fascinating creatures and possess many unique anatomical characteristics
  - feather-bearing and lay eggs
  - feathered animals
  - flight orientated organisms
  - flock animals
  - fond of the seeds, which are produced in abundance
  - food for many animals
* are found at predictable times and locations
  - on every continent of the world
  - fragile animals
  - from around the world
* are good at bringing in mites or lice
  - building nests
* are good indicators of climate change
  - the ecological health of an area
  - what to expect
  - pets for smaller apartments and cramped living quarters
  - healthier, all naturally, without synthetic vitamins, drugs or chemicals
* are high energy creatures that require a very balanced diet
  - on the list of living things people want to save
  - highly specialized animals
* are highly susceptible to West Nile virus, and are thought to be the only viral reservoirs
  - cold and heat
  - variable in many ways
  - visible in life, everybody knows what a bird is
  - visually sensitive, but sounds can also be a factor in identification
  - host to diverse mites
  - immune to toxic mistletoe berries and act as agents to disseminate the seeds
* are important components of ecosystems
  - ecologically as well as economically
  - elements of nearly every ecosystem on earth
  - indicators of long term environmental and agricultural sustainability
  - prey where fish and crayfish are scarce
  - scavengers in many ecosystems, removing the carcasses of dead animals
  - sentinels for the overall health of the environment
* are important to rainforests because they like to eat seeds and fruit
  - the desert plant community
  - in good general body condition
  - incapable of burping or passing gas from their behinds
  - incredible companion animals with very long life spans
  - incredibly diverse in size, color, and lifestyles
  - indicators of the overall health of our environment
  - intellient creatures, parrots even more so
* are intelligent animals and require mental stimulation
* are intelligent, amazing animals that deserve a long, healthy, happy life
  - playful, loving, and social
  - responsive and a great deal of fun to own
  - irreverent squatters, treading light and squawking heavy, making nests from found objects
* are just feathery, flying dinosaurs in the opinion of most vertebrate paleontologists
  - one item in their diet
  - key to the spread of the virus
  - known to be sensitive to air pressure changes, and often hunker down before a big storm
  - largely responsible for spreading the seed
  - larger in the temperate zones than in the tropics
  - least susceptible to the poisons
* are less attracted to the crop, which enables fruit to be left hanging on the tree longer
  - common in the north and in the drier regions
  - lighter than other animals
* are like children - they want to taste everything
  - people when it comes to who they like and who they dont like
* are likely to decoy when returning from feeding areas
  - swallow before they taste
  - listed for countries included within their breeding or wintering ranges
  - living dinosaurs, most experts believe
* are located in air
  - bushs
  - countrysides
  - lawns
  - water fountains
  - windowsills
  - male and female
  - many times more sensitive to chemicals than mammals
* are masters at hiding signs of illness as a protective mechanism
  - sickness
  - mature and good flyers
  - meant to fly and be with others of their own kind in a natural environment
  - messengers and can carry olive branches in their beaks when they fly over flood waters
* are messy eaters, and get food all over themselves
  - migratory and are regulated by the federal government
  - monogamous, live as s
* are more active around the colony site during spring and early summer
  - advanced than fish, amphibians or reptiles
  - closely related to mammals than sharks are to most fishes
  - emotional than mammals, and their love-making is more refined
  - likely to develop respiratory troubles if heat is removed too early
  - numerous in northern Australia
* are more sensitive and they eat everything
  - to air pollutants than people
  - than the sum of their feathers
* are more tolerant of high doses of lindane than are mammals
  - vehicles, moving or parked, than of people walking around
* are most active and easily observed in the early mornings and late afternoons
  - conspicuous during the early morning hours
  - mostly air dwellers that rely on the trees to attract mates
  - mutes
* are natural alarm bells
  - enemies of many insects
  - flock creatures and they form strong bonds with other members of their flocks
  - naturally affectionate, active and intelligent
* are notorious for hiding or concealing the visible signs of illness
  - opening birdcage latches
* are numerous and include the golden eagle
  - for most of the year in Palm Canyon
* are numerous, and large mammals occasionally frequent the geyser basins
  - especially egrets, herons and ospreys
* are of great economic importance to man
  - top quality stock and are healthy and vibrant
* are often easier to spot, as they roost in trees or brush and take to the air
  - far away, relative to our eyesight
  - ideal pets for people with allergies to dogs and cats
  - inclined to try to uproot the sets, particularly if too much of the bulb is showing
  - serious pests of the fruit
  - the hosts
  - times seen as pests
* are one group of animals with much diversity
  - important source of food for Aboriginal people
  - of only four taxonomic groups to have evolved powered flight
* are one of the best, and in some cases the only, monitors of environmental change
  - only major taxa where monogamy is the dominant mating system
  - two classes of homotherms
  - taxon for which reliable information about extinctions exists
  - only one indicator of the role that coffee plays in protecting biological diversity
  - our best natural insect control, eating tons of insects annually
* are part of birds
  - the dinosaur clade
* are particularly likely to island-hop
  - numerous in and around salt marshes
  - responsive to energetic therapeutics
  - susceptible to entanglement as they collect material for their nests
  - placed in an exercise pool to build up their physical fitness
  - plentiful including parrots, hawks and wedge- tailed eagles
  - plentiful, especially sea-birds, but other animal life is sparse
  - powerful symbols of the cycle of life
* are present in several food names
  - throughout almost every habitat across the globe
  - primary amplifier hosts
  - principal agents of seed dissemination, with water a secondary agent
* are probably the most beloved group of wild animals on the planet
  - popular animal species that benefit from feeders
* are quite active and therefore eat a lot
  - close to mammals with a highly developed vertebrate immune system
  - variable in their behaviors
  - rare in the fossil record, because their skeletons are fragile
  - related through one common ancestor
* are relatively easy to identify
  - fearless while in the cover
  - reluctant to walk, preferring to sit rather than stand
  - remarkable, and egg laying unique biologic event
  - responsible for spreading tulip seeds as well
  - rounded with a flat head, resembling a robin
  - safer in the water than in the middle of a pasture
  - seasonal creatures of habit
  - seasonally abundant
  - secretive during incubation
  - self-centered, and behave to please themselves
  - sensitive indicators of environmental change
  - significantly more susceptible to diazinon than other wildlife
  - simply everywhere and are, probably, the most successful inhabitants of Earth
  - situated between reptile and mammals in the evolutionary line
* are small and easy to care for
  - surviving flying dinosaurs
  - smallest in the far west and on the south coast
  - smalls
* are so abundant their song nearly drowns out the sound of crashing ocean waves
  - sensitive to smells and chemicals
* are social creatures and do best when placed in a room with lots of family activity
* are some of the most colorful and interesting creatures that share our world
  - interesting and observable animals
  - still common in impoundment areas
* are subject to a number of different heart conditions
  - cannibalism anytime they are confined, and often when they run free
  - terrestrial organisms
* are the cause of many diseases of humans and domestic animals
  - desert's alarm clock
  - last surviving dinosaurs
  - living descendants of dinosaurs
* are the main carriers of the infection, which is spread by mosquitoes
  - dispersal agents of the seeds , consuming the fruit during their fall migration
  - mode of seed dispersion
* are the major predator of the ladybug
  - source of the virus
* are the most active creatures
  - beautiful and accessible animals on earth
* are the most common animal living on the barrier beach
  - diverse vertebrate group followed by fish
  - efficient breathers on the planet
  - important dispersal agents
  - likely predators of adult African bullfrogs
  - mobile creatures on Earth
  - numerous and important group of terrestrial vertebrates
  - obvious predators
* are the most popular group in the animal kingdom
  - visible of our prairie animals
* are the natural host for the virus, which can be fatal to birds and humans
  - reservoir of the virus
* are the only animals that have feathers and all birds have feathers
  - feathers and wings
* are the only animals to do well when human income levels go up, they say
  - well, they say
  - dinosaurs surviving today
  - group of animals to possess feathers
* are the only living descendants of the theropods
  - organisms with feathers, and no dinosaurs have been found with feathers
  - remaining species from the dinosaur line
  - species for which the status of all members has been assessed
  - original carriers of viral encephalitis
* are the primary agents of seed dispersal in New Guinea's forests
  - carriers of the disease
  - reservoir for new influenza viruses
  - sentinels of the forest
  - subject for many famous artists and nature writers
  - youngest but most numerous class of vertebrates on Earth
* are thought to be descendents of dinosaurs
  - most closely related to a. dinosaurs
  - have evolved from a. b. c. d. small, tree-dwelling mammals
  - pair for life
  - use cryptochromes in some part of their heads to sense magnetic fields
  - to remain in their cages
  - toe-walkers too
  - toothless, an adaptation that trims the weight of the head
* are unable to fly when oil loads the feathers
  - preen themselves on the head which allows for mites to exist there
  - unaffected by the capsicum resin in peppers, but squirrels do feel the heat
  - unique in that they are the only known creatures that migrate great distances
  - used for watching
  - vectors of numerous diseases, both bacterial and viruial
  - vertebrates with feathers, modified for flight and for active metabolism
* are very active
  - apt to fear things which are up above
  - attracted to running water
  - finicky when it comes to selecting a home
  - good at hiding illness or injury
  - hardy creatures and can cope with a wide range of conditions if healthy
  - highly evolved vertebrates
  - intelligent creatures
  - long-lived creatures
* are very sensitive to air quality
  - many household products
  - social animals
  - susceptible to the effects of inhaled volatile toxins, including essential oils
  - vigilant and alert because they have to be to stay alive
  - virtually absent from the fossil record
* are warm blooded and their body is divided into the head, neck and trunk
  - vertebrate animals with feathers and a bill
* are warm-blooded and their young hatch out from eggs
  - therefore have a constant temperature
  - animals with feathers and wings
  - like mammals, but unlike mammals, they lay eggs
* are warm-blooded, and most species can fly
  - so they have other reasons for high flying
  - way too intelligent to put in a cage and leave there to eat seed and look pretty
* are well known for their very elaborate courtship displays in an attempt to attract a mate
  - winged creatures with colorful plumage which are used as transportation by the gentlefolk
* arrive at locations
  - to feed on the vernal pool plants and animals
* attain adult plumage in the third year.
  - monarchs because the caterpillars are born on milkweed plants
  - the Dead Sea because there are only a few plants to feed upon
* bathe only infrequently when temperatures drop below freezing.
* bear their young in hard-shelled eggs which hatch after some time
* become confused by bright lights and can lose their way
  - dependent on bird feeders
  - dinosaurs, pelycosaurs and mammals become therapsids, which cease to be reptiles
  - less mobilized and scan the air
  - victims
* beep and squeak and call to one another as they flutter about the arms of the tree.
* begin dying of fowl cholera four to nine days after exposed to the virus
  - their life inside a hard egg
  - to make their presence known
* belong outside, where they can be free.
  - grades
* bite prey.
* bitten by infected mosquitoes are infectious from four to eight days.
* blanket many of the smaller islands around.
* breathe by expanding the ribcage outward, which draws air in like a bellows
  - faster than mammals and their bodies are warmer
  - in air through their lungs
  - with lungs
* breed in almost unreachable places.
* breed, nest, feed and escape their predat ors in wetlands.
* bruise more easily when on aspirin.
* build a nest to keep predators away and hide eggs.
* build nests for breeding in trees, on cliffs, or on the ground
  - on the grooved rock formations that surround geysers
  - their nests everywhere
* build their nests in trees along the bank from mud and twigs gathered along the shore
  - trees, bushes, and on the ground
  - nearby and sing in the trees
* bypass the issue by having no teeth at all and are able to maintain the horny beak with ease.
* cages for pet birds
  - to hang plants in, grapevine to twine around picture frames or a window
* call and sing.
* call to one another from across an open field
* can accurately judge distances when flying, landing, and looking for food
  - actually feel changes in air pressure in their inner ear
  - additionaly have oil droplets as color filters in front of their photoreceptors
  - affect the evolution of insects by increasing the cost of avoidance strategies to insects
  - afford to be that obvious because of their ability to fly
* can also be mischievous and highly destructive
  - some of the fiercest warriors in the animal kingdom
  - grow a more dense cover of feathers
  - make lots of noise for other reasons
  - obtain water via the foods they ingest
  - pant for prolonged periods without constricting the blood vessels in their brains
  - pass on an infection called psittacosis
  - segregate themselves temporally
  - suffer heat stroke
  - and do die
* can be a major pest on blue corn
  - pain near harvest time
  - an intermediate vector
  - as different as people when it comes to their food preferences
  - both helpful and harmful to man
  - carnivores, insectivores, or generalists, which feed on a variety of foods
  - indicators of the health of the environment as a whole
  - killed in collisions with wind turbines, turbines produce some noise
* can be many colors
  - different colors
  - physically fragile, but they are also emotionally fragile as well
  - polyoma vaccinated upon request
  - quite intelligent and have complex social groups
  - relatively small non-threatening animals
  - very persistent
* can become dangerously caught, slipping their beak into the clip area
  - entangled in long pieces of leather or sisal
  - exhausted after flying around for hours and have difficulty maintaining height
  - very ill, particularly after eating artificial tree needles
  - behaviorally thermoregulate to some extent to reduce heat loss
  - bleed to death very easily
* can carry allergy-provoking mites, molds or pollen on their feathers
  - bacterial infections for years and still appear healthy
  - seeds in the mud that they pick up on their feet
  - catch their nails on string, and swallow it as well
* can cause damage to pearl millet fields
  - severe damage in localized areas
* can choke on peanut butter
  - uncooked pasta
  - come from as far away as China, Japan, Siberia and Arctic regions
  - conceal that they are unwell until they are very sick and debilitated
  - decimate a lettuce patch, and they like the same tender seedlings as do the slugs
* can die as the result of window collisions
  - if they become badly entangled in the nesting material
  - digest most of the outer white shell of the flower and some of the sticky, clear liquid
  - discern colors, smells, textures and flavors in their natural habitat
  - do amazing things with their beaks, from cracking open a shell to turning an egg
  - drink from nipple drinkers that dispense water with a push of a button
  - drown in small amounts of water
  - eat their weight in aphids and mosquitos
  - experience both stress and physical discomfort on capture and transportation
* can fall in and drown
  - feed on any type of seed
* can fly , but cats can jump
  - and airplanes can fly
  - away, but buildings stay to suffer the consequences of environmental neglect
  - somewhere else for water
  - very long distances
* can get fat, especially on some diets, but err on the cautious side
  - very sick very fast
  - gradually develop immunity to coccidiosis
* can have a latent infection
  - nine to twelve primaries, but the most common number is ten
  - wind, fish can have water ice for an arctic bear and so forth
  - help to control insects, especially pasture pests like scarab beetles
  - hide illness for a long time
  - hover, they can fly backwards and sideways
  - learn to avoid certain color patterns
* can live fine in a collar
  - for days-weeks months, and even years after an escape
  - longer without proper nutrition than they can without good quality water
  - make hundreds of trips to collect materials
  - move by flapping their wings , or they can stay in the same place
  - nest in snags as small as four inches in diameter
  - obtain water directly from their food, insects and even plant seeds
  - often safely perch on a power line without being electrocuted
  - overcome the cardenolide defense of monarch butterflies in Mexico
  - overheat very easily and die from being wrapped up too long, especially in warm weather
  - quickly become hypothermic and perish
  - reach their breeding grounds quickly and get the best territory
  - recognize many characteristics and select for favorable patterns
  - recover from botulism poisoning under favourable environmental conditions
  - see their reflection in a window
  - show a variety of clinical signs
  - sometimes be variable due to the two reasons
  - spread viral infections among the insect pests
  - stop overnight in a pond in a suburb or city, as well as a wetland, rice field, or lake
* can suffer from a number of skin conditions that affect the feet
  - just as much from excess vitamins as an insufficiency
  - respiratory signs as above along with conjunctivitis
  - severe injuries by flying into such materials
  - with mites and lice
  - sun themselves to keep warm in winter
  - survive with supportive care, food and water, and protection from secondary infections
  - synthesize their own melanin by oxidizing the amino acid tyrosine
  - tense their muscles to make the feathers stand up and thus hold a thicker volume of air
  - then leaf bathe by rubbing up against the wet foliage
  - travel across the Atlantic by normal migration, storms, or legal and illegal importation
  - turn up at any time and in any place
* carry allergy-provoking mites, moulds and pollen on their feathers.
* carry ancient medleys to their off-springs
* carry the West Nile virus
  - seed from tree to tree
* carve out their own niche in nature.
* catch and eat adult dragonflies
  - their feeding habits as food grows scarce
* chew constantly.
  - trees to find food
* close eyes.
  - the soft hairy seed to line their nests
* collide with every size and kind of glass window, door, or lobby.
* come from all over the world hungry and ready to eat all the insects
  - great breeding stock
  - the smaller islands and repopulate the ones the foxes have been removed from
  - in a huge range of colours
* come in all shapes and all sizes, depending on the climate, landscape and the food source
  - sizes, including the ostrich
  - many sizes, shapes and colors
  - into contact
  - water to drink, bathe and feed
* come, that fly away in winter.
* commonly eat small pebbles to grind food for digestion
  - feed upon the seeds, which can be employed to fatten poultry
* communicate using body language in very subtle ways
  - vocal skills and body language
  - verbally as many other species of animals do
* construct their nests without consciously thinking about it.
  - huge quantities of seed and other natural foods found on a farm
* contaminate insulation with droppings.
* continue to serve as guardians of our environment.
* contribute to the economy.
* control pasture pests
  - their own unstable flight in three dimensions
* copy each other's songs.
* craft their nests without consciously thinking about it.
* create lift by moving forward.
* cry, but never shed tears.
* declare their territory by singing.
* defend territories just as frequently as mammals
  - themselves in many ways, including gathering in large groups or flocks
* defending their nests virtually always attack the highest part of their perceived enemy.
* depart in opposite directions after post-copulatory display.
  - particles of grit, in the gizzard, to grind up hard seeds
* descending from high altitudes can perform amazing dives, rolls and turns.
* desire flies.
* develop drooping wings, lameness and paralysis, particularly of the legs
  - feeding patterns and become dependent on feeders for their food
  - their bright colors from living around certain colors
* devour the fleshy arils and void the seeds which remain viable.
* die after eating granular pesticides
  - faster due to heat stress than cold stress
  - from oil spills if their feathers are covered in oil
  - wherever they happen to be when they become too weak to move around any more
* differ because they also have a map sense
  - from all other animals in having feathers
  - in how they feed
* digest food rapidly but that depends on the food and the bird
  - the pulp of the berry and excrete the living seed
  - their food quickly and create a great deal of waste matter
* digging burrows have severely warn bills and claws.
* disseminate seeds and prey upon innumerable insect and vertebrate pests.
* distribute plant seeds over the large distances.
* diversify, occupying the niches left by the pterosaurs.
* do bite a lot more in captivity, usually because their boundaries are being pushed too far
  - eat tarantulas, it's unlikely it's the other way around
  - get sick
  - have changing moods
  - it by feigning injury to lead hungry predators away from nesting young
* do it, bees do it, even monarch butterflies in trees do it
  - polyps in the sea do it
  - like water play, and with supervision, many even enjoy showers with their owners
  - still come home to roost
* do that by using their wings
  - instinctively, in response to a change in the temperature
  - the same, as do squirrels, etc
  - wonderful things to match behavior with coloration
* do, however, prefer some type of escape cover to retreat into when startled
  - of course Even trees have their own songs
* drink blood
  - from the ponds in the summer and deer share apples, plums, and pears in the fall
* drop debris on the ice which creates a serious hazard for ice skaters
  - lifeless from trees
  - out of the sky, dead, because of the heat and the sun
* droppings down the chimney can cause a bad smell and a breeding ground for mites.
* eat a lo t of willow, especially in the winter when other foods are scarce
  - lot of food in winter in order to stay warm
  - wide variety of seeds and insects
  - at different heights, and some become territorial with feeding grounds
  - berries, seeds, insects and some even eat worms
  - both the larvae and adults of the gypsy moths
  - buds and mountain beavers eat leaves and bark
  - caterpillars on the willows, however
  - continually throughout the day, dropping and discarding bits of food everywhere
  - crops, damage property, and leave deposits of droppings and nesting material
  - fly's
* eat food in different ways
  - that they scavenge
  - frequently throughout the daytime
* eat granules exposed on the soil surface, mistaking the granules for food or grit
  - or eat prey that have been exposed to chemicals
* eat insects, grubs, flies and spiders
  - worms and other live creatures different from themselves
  - lots of insects
  - mosquitoes and other insects
  - plants and are in turn consumed by African wildcats
  - salmon smolts released from hatcheries, and also eat hatchery and fishery offal
* eat seeds all the time anyway
  - and berries, and many eat insects as well
* eat small fish with small bones
  - souls
  - sprayed bugs and die themselves
  - stones because with birds being toothless
* eat the adult flies and the larvae
  - arils and spread theseed
* eat the berries and disperse seeds to other locations
  - distribute the seeds in their droppings
  - find cover in the branches
  - in turn spread the seeds
  - buds, small mammals eat the fruit, and several species feed on the bark and sprouts
  - dry berries and disperse the seeds
  - eggshells for the calcium they provide
  - fish, algae and human food
  - fruit, dispersing the seeds to other tree limbs
* eat the fruits, and then disperse the undigested seeds
  - thereby spreading the seeds beyond the limits of cultivation
  - hips, and then pass the seeds in new locations
* eat the seeds and also collect the silken tassels for their nests
  - one at a time
  - shiny plastic and think they are full, but later die of starvation
  - small, black fruit and deposit the seeds everywhere
  - treated insects and berries
  - their berries, which are coated in gluey material called viscin
  - up the seed that falls on the hard soil of the path
* eaten more frequently in nesting period.
* eating infected worms can also help disperse the oocysts
  - insects bring direct benefit to agriculture and forestry destroying pests
  - the petals pollinate the flower
* employ the most astonishing strategies to conceal their young from predators.
* encounter many hazards during migration.
* enjoy diets
  - eating pepper pods, but they have an aversion to the highly concentrated oleoresins
  - fresh seeds
  - having their heads scratched
  - oil seeds
* enjoy the many seeds the stalks hold through the fall and winter
  - movement of swings, perhaps because they resemble branches swaying in the wind
  - veggies, fruits, pasta, sprouts, grains and even cooked meat such as chicken
  - territories and begin mating and nesting
* excavate at all times of day but more frequently in morning.
* excrete that white pasty stuff instead of separately urinating and defecating like mammals do
  - their nitrogenous wastes as uric acid in the form of a paste
* exhibit a variety of mating systems
  - vast array of different behaviors, including many which humans can relate to
* exist as byproducts of vegetation.
  - their ranges northwards
* face a number of other threats
  - many threats on their breeding and wintering grounds and on their migratory stop-overs
  - sexual discrimination
  - special challenges when it comes to obtaining nutrition from food
* fall from the sky
  - out of the eye onto large bodies of water, or even wet parking lots that look like water
  - mainly on the ground and often in vast flocks
  - most frequently in the morning and evening
* feed on berries and seeds found in hedgerow borders while ladybirds gorge on aphids
  - different food patches throughout the year
  - insects and provide visual delight as well
* feed on the baitfish that stripers and blues often chase to the surface
  - berries and sometimes act drunk afterwards
  - buds, and rodents, such as beavers and porcupines, eat the bark
  - tight clusters of small, reddish fruit borne on the branch tips of female trees
  - upon adults and larvae while predatory bugs attack eggs and larvae
  - usually on insects and their larvae from the mid canopy
* feeding at a bird feeder is an example of a dispersion economy
  - in flocks always have a few lookouts ready to sound the alarm in case of enemies
* feel safer in cages that have corners so avoid cages that are round or dome shaped
* figure prominently in Native legends.
* fill the air with their chirps and songs as they too celebrate the changing of the seasons.
  - fruits of both species edible
  - it difficult to peck on ears that have flopped over
  - nest boxes and have young every year
* finish their molt and the days grow shorter.
* flap wings.
* flit across skies that, once gray and foreboding, are now light blue
  - among palm fronds and exotic fish glide in orchid-fringed pools
  - from tree to tree with song and life
* flock overhead and sing in the forest.
* fluff up their feathers and trap air between the feathers
  - when they want to stay warm, since fluffing introduces air
* fly and eat insects
  - fish swim
* fly at different times of the year
  - many altitudes, depending on where they are going and the purpose for their travel
  - night and rest during the day with other swans
  - varying altitudes during migration
  - away and rodents go underground
  - because of lift
  - faster when migrating than otherwise
  - from one area to another as their food sources shift
  - high in the sky
  - in and birds fly out And never touch a hair
* fly in the air
  - breezy air and sing graceful songs
  - into windows or mirrors, injuring themselves in the process
* fly north during the summertime to evade warmer weather
  - in the spring to find food and breed
  - northward or settle down to raise families
  - or sit facing into the wind or in a crosswind
* fly out early
  - of windows, never to be seen again
* fly south as winter approaches
  - for the winter because it's warmer in the South
  - in the winter to keep warm
  - south, far, far south
  - through the air
  - towards the sun
* fly up from South America, going north to nest
  - to their nests
  - up, goldfinches and larks, bees, beetles, bugs and birds
  - using wings
  - very efficiently
  - with twists and turns
* fly, but they are in a separate scientific classification
  - fish swim, and people learn
* follow a similar strategy of waste elimination
  - instincts to provide, protect, and nurture
* forage for aerial insects
* forage in agricultural fields
* form breed pairs
  - the majority of the group of animals which collect building material of animal origin
* frequently eat the flower buds during winter, affecting the blooming the following spring
  - roost on the eagle on top of the flagpole
  - vocalize to attract a mate
* gather in great numbers whenever there plague of insects
  - there at night to sleep
* generally behave as if they perceive, learn, and act upon an object-filled visual world
  - handle transport remarkably well
  - have excellent color vision
  - swallow things whole, including stones
  - take off shortly after sundown and rapidly gain maximum altitude
* get an opportunity to breed without human interferences
  - hardening of the arteries and heart disease just like people
  - information about position of other birds through singing
  - into compulsive preening behavior
  - sick when they eat food contaminated by infected droppings
  - slower when they're cold and it's easy for a cat to nab one
  - off heat as they grow
  - rise to a most important form of divination
* glide silently by on the currents.
* go after the ripening fruit, as do squirrels
  - from the egg, to the chick, to the adult
* go through a nippy stage when they hit puberty
  - sequence of feather changes, or molts
  - most of the same phases as children do growing-up
* go to great lengths to maintain plumage in good condition
  - the poles, and survive extremely low temperatures
  - underwater
* gorge themselves on inebriating berries, then fly with reckless abandon.
* gradually replace old feathers with new ones each year.
* grow a girdle of bone in their chests quite different from dinosaur chests
  - fastest, followed by mammals, marsupials, reptiles and then fish
  - tired of the air
* handle excretory material in a similar way to reptiles.
* harbor the virus and transmit it to mosquitoes, which, in turn, can infect humans.
* hatch and raise offspring.
* hate losing their balance.
* have a beak or a bill
  - bony sternum, but some birds lack a keel
  - built-in calendar, clock, and the ability to tell latitude and longitude
  - fully ossified skeleton with air cavities
  - gland in the eye that controls reproduction
  - high metabolic rate and a high energy requirement
  - large brain to body mass ratio
  - lightweight skeleton
  - long fossil record and new discoveries are being made every year
  - lot of adaptations for flight
  - modified diapsid type of skull
  - much higher glucose level than any mammalian species
  - muscular portion of the stomach called the gizzard, which grinds and crushes food
* have a natural fondness for fruit
  - instinct to preen when their feathers are wet
  - tendency to imitate each other
  - naturally higher body heat than many other creatures
* have a pair of legs and feet with sharp claws for clinging to branches of trees
  - lungs connected to the outside air by a single trachea
* have a poorly developed clotting system
  - relatively small supply of circulating blood in their bodies
  - remarkable immune system, and it is constantly being tested by new microbes
  - reversed rear toe that opposes the front three toes and allows birds to perch
  - sac-like structure called a to store and moisten food
* have a series of air sacs in the body that serve to reduce weight
  - located around each lung
  - short tail and the caudal vertebrae are fused to give the pygostyle
  - significant role in almost all ecological systems
* have a similar basic plan to their nervous system as the rest of the vertebrates
  - leg and sacral structure
  - system, but it works in the opposite direction
  - single oil gland near the base of the tail, referred to as the preen gland
  - smaller total number of bones than mammals or reptiles
  - specially designed skeleton for efficient aero-dynamic performance
  - streamlined body shape , so that they slip through air more easily
  - thicker retina than humans and their eyes are larger in proportion to their head size
  - thin and delicate epidermis, or skin, compared to other vertebrates
  - third pattern of gene arrangement
  - tremendous variety of combinations of feather components
  - unique lung with a one-way air flow design
  - use for their tail in providing aerodynamic guidance as they fly
  - very different system
* have a very high metabloic rate and the smaller the bird the higher the rate
  - metabolic rate, and thus require a high breathing rate
  - special feeling about their droppings
* have a way of enriching their water by dropping food in it
  - putting things in perspective
  - wide variety of feathers, from large flight feathers to tiny down feathers
  - absolutely no ideas about human gender
  - accents
* have air sacs that collect air
  - within their bones
  - amazing and varied behaviors
* have an acute sense of taste
  - attractive look with the make up of their feathers
  - efficient breathing system, with two lungs that have special balloon-like air sacs
  - inherent instinct to hide their symptoms and illnesses
  - organ called a crop, which contains stones that grind food
  - bald heads
  - beaks and claws
  - better access to feed with wider auger pitch
  - bills but they sing anyway
  - bodies covered with feathers
  - bones that are hard and very thick
  - bony beaks that are specialised according to the bird's ecological niche
  - break legs
  - breed ranges
  - choices
* have delicate bones
  - respiratory systems
  - delicate, hollow bones to lighten their weight while dinosaurs had solid bones
  - colors, sizes, wing markings, tail shapes, beaks, and habits
* have different kinds of beaks, depending on the kind of food it eats
  - feet and beaks
  - personalities, just like humans
  - ways of looking colorful
  - diseases such as psittacosis and avian tuberculosis
  - enormous eyes relative to their body size and the keenest vision of all vertebrates
* have excellent colour vision, and the feathers of many species react to ultraviolet light
  - eyes, perhaps the best of all vertebrates
  - vision and coordination, supported by well-developed areas of the brain
* have extremely great energy requirements because of their high metabolic rate
  - fantastic eyesight with a keen ability to discern colors
* have feathers and lay eggs
  - mammals have hair
  - for protection from different weather conditions
* have feathers on most of their body, and scales on legs and feet
  - their skin
* have feathers that are designed for different functions
  - make a flapping sound
* have feathers, are hatched from eggs, and are usually mouth-fed by their parents
  - two wings, two feet, bills or beaks, eggs, etc
* have feathers, wings, beaks, and scales on their legs and feet
  - lay eggs and are warm blooded
  - feet and can walk
  - fewer taste buds than do mammals
* have fewer vertebrae and fewer bones at the ends of their limbs
  - while other species have more
  - forearms modified for flight
* have four appendages
  - cone receptors and also they are able to see the ultraviolet radation
  - eyesight and colour vision and most are active by day
  - vision, sense of smell and have a magnetic field detection
* have great potential
  - prominence in Irish mythology
  - hard shells
  - high metabolisms, and their condition can degrade very quickly without proper care
  - highly developed color vision
* have highly efficient lungs, divided ventricles in their heart, and are warm- blooded
  - respiratory systems which absorb chemicals very quickly
  - hiss voices
* have hollow bones and are astoundingly light
  - like dinosaurs and their feathers are really just a form of scales
  - that are very light and strong
  - hollow, lightweight bones, ideal for flight-but poor for fossilization
  - huge eyes, particularly owls
  - impact
  - intrinsic value
  - knees
  - leukocytes , too, and the most numerous leukocyte is the lymphocyte
* have light and porous bones but kiwis have heavy bones like mammals
  - light-weight that are filled with air
  - lightweight skeletons in which many of the major bones are hollow
* have little if any magnifying power in their eyes
  - lock mechanisms
* have long legs, bright yellow beaks and are brightly marked and speckled in wintertime
* have many adaptations for flight such as lightweight, hollow bones, feathers, and wings
  - including flying, laying eggs, having a beak, and hollow bones
  - different ways of taking off
  - more cones in their retinas than do humans and thus have excellent color vision
  - mostly thin skin with little keratin
  - moveable upper and lower eyelids, just like humans
  - much less blood than humans and can literally bleed to death from a broken blood feather
  - mucous in respiratory tract and spotty hemorrhages on abdominal fat
  - nests with eggs inside
* have no ability to reason or to comprehend the concept of reflection
  - spit
  - sweat glands and lose heat through their respiratory system and exposed skin
* have no teeth and depend on grit in their gizzard to help digest their food
  - to grind their food
  - urinary bladder, and urine is temporarily held in the cloaca
* have one beak, two wings, and two feet
  - common tract for urine, poop, eggs and sperm
  - occipital condyle, but mammals have two
  - of the most complex respiratory systems of all animal groups
  - type of body, fish have another, the moon has yet another
  - only one functional ovary
* have other adaptations that keep their weight low
  - skeletal differences from other animals
  - pale brown backs
  - particularly thinner barriers than bats and nonflying mammals
  - pin feathers which are new feathers that are covered by a thin sheath
* have pneumatic bones that are hollow rather than tissue-filled
  - hollow, and light in weight
* have powerful beaks
  - breast muscles which is the power source for the movement of the wings
  - relatively large eyes in relation to the size of the head
  - remarkable genetic programmes for building nests, singing and migrating
  - reptilian scales
  - same problems
  - scales, claws, and they lay eggs
  - scissor beaks
  - sensitive feet and they can feel the vibrations of the earthworms moving underground
  - several ways of adjusting the time and energy costs of intermittent incubation
  - eyes and are always on the lookout for an insect meal
  - eyesight, and their eyes can dart quickly to spot food or predators
* have short beaks
  - loops, mammals longer
  - sing voices
  - skeletons similar to mammal skeletons
  - small glomeruli, but about twice as many nephrons as similarly sized mammals
  - something of an advantage when it comes to speed, for obvious reasons
  - special adaptations that allow flight to be possible
  - swallow difficulty
* have swell eyes
  - talons and can grasp a branch securely
* have the ability to learn and respond to specific training experiences
  - see ultraviolet light as well as the primary colors
  - best sight in the animal kingdom to see ripe fruit colors
  - capacity to mask signs of illness
  - greatest number and range of influenza strains
  - their own ways for adapting to global warming
  - thicker egg shells than reptiles
* have three basic types of feathers
  - eyelids, and so do dogs and cats
* have to eat alot of food to store fat for their journey
  - more food than their proportion size because of their high metabolic rates
  - regularly in order to stay healthy
  - fly to get food and to run away from their enemies
  - have a light mass so that they still are able to carry themselves in flight
  - incubate eggs outside their body, requiring additional heat
  - lay down a substantial food reserve to be able to fly thousands of miles
  - maintain a small mass because in order to stay in flight
  - tremendous cultural and economic value
  - tunes
* have two eyes
  - types of nephrons
  - two-part wings
  - unbelievably thin bones that are extremely strong
  - uncinate processes on the ribs
  - vary diets
* have very airy bones, large animals have very dense bone
  - brief sleep periods
* have very good homing abilities
  - large chest muscles called pectorals which are used to flap the wings
  - light, fragile bones which can easily be injured by a clumsy landing or a fall
  - sensitive respiratory systems
  - strong muscles in their wings and very light, hollow bones
* have wide breed ranges
* have wings and most have the ability to fly
  - so do insects
  - for flying
  - which they use to fly and they have feathers and beaks and two legs
* have wings, are feathered, have beaks, lay eggs, and are warm-blooded
  - which help in flying
  - wonderful dispersal abilities
  - yet to return to beaches
* help disperse the fruits
  - to maintain balance in the environment
* hide illness as an instinctive protection against predators
  - quite well
  - their illnesses very well as it is part of their natural defenses
* hold widespread public interest.
* hop slower, but keep peeping.
* huddle together for warmth.
* hunt food
* include birds
  - blue jays
  - cuckoos
  - gulls
  - mourn doves
* includes air sacs
  - bird's feet
  - cell membranes
  - chest cavities
  - corpi
  - cytoplasm
  - lips
  - nuclei
  - plasma membranes
  - quill feathers
  - rib cages
  - second joints
  - sections
  - vacuoles
  - wishbones
* ingest matter.
* inhabit areas
* inhale the mold spores and infection spreads in the lungs, causing bronchitis and pneumonia.
* insect nesting associations in the tropics.
* instinctively feed their young worms and build nests without ever having been taught how.
* is birds.
* keep a distance
  - farmers in business
* know when to fly south.
* lack teeth, and the grit which is kept in the gizzard is used to grind up seeds
  - the enzyme necessary to form bilirubin and thus form biliverdin instead
* landing on the float add nutrients to the system, enriching it.
* lay amniotic eggs with hard, calcium carbonate shells
  - eggs and most bird parents look after their young
* lay eggs in clutches
  - which they generally incubate
  - eggs, and eggs have to be kept warm
  - hard eggs but provide a great deal of care for their eggs and developing young
* lay hard-shelled eggs made mostly of calcium carbonate
  - that hatch and produce helpless chicks
  - from experience
  - quickly to avoid certain types of food that are poisonous
  - song from aggressive tutors
  - their songs
* learn to associate odors with wind direction
  - communicate with people through sounds, behaviors, and actions
  - discriminate after one exposure
* leave on migratory journeys, bears and rodents hide in hibernation.
  - their wings slightly
* like corn
  - to be with birds of like feather
* like to eat mice
* like to feed in quiet secluded places near trees and bushes
  - the sun and out of the wind
  - large, juicy insects to their young
  - near cover
* like to feel safe when bathing, so selecting the proper location is important
  - know they can easily fly to cover if necessary
  - perch and view an area before sampling food and water
  - preen after a bath and after meals
* likely choose breeding sites based on vegetation characteristics.
* live a long time
  - very precarious life surrounded by many natural and man-made dangers
  - considerably longer than mammals of comparable body size
* live in every part of Jamaica, from the sea to the top of the tallest mountain
  - room unless the patient objects
* live in the fields or in the woods
* live on Earth, trees live on Earth
  - the edge
* living along the fringes of forests or the edge of the sea are good examples
  - near lakes, pond or the ocean are most likely to eat the following organisms
  - on small islands are highly vulnerable to extinction
* localize their activities in either the canopy or the subcanopy.
* locate their largest air sacs between their flight muscles and in their body cavity.
* look for bright colors and high nectar production characteristics
  - their feathers at certain times
* love berries
  - dripping, splashing and moving water
  - evergreens especially in winter when other trees have lost their leaves
  - feeding in partially shaded areas
  - fruits and seedlings
  - our world and a wide variety of species move through the area in the annual migrations
  - the berry-like cones, which are a food source during the winter
* love the dense canopy and abundant seeds
  - cover and fruits that hollies provide
  - refuge of their hidden jungles
  - sound of trickling water
* love to be feed sunflowers
  - climb so it is better to have the bars on the sides running horizontal if possible
  - dine on all sorts of bugs, big and small
  - eat what their owners eat
  - splash in water, so including a birdbath good method to attract songbirds
  - variety in color and shape
* mainly fulmars.
  - their feather condition by bathing in water, dust bathing, and preening
* make a nest where they lay their eggs
  - variety of sounds with a variety of purposes
  - adjustment
  - all kinds of sounds and noises
  - big holes in dead trees and move right in
* make delicate adjustment
  - lacy prints as they scratch for sunflower seeds
  - exotic noises, and insects sizzle and click
  - extensive and specially directed flights
* make nests from string, grass and sticks
  - pretty raspy sounds, but geese are famous for being the nastiest
* make their living in a number of ways
  - nest in circles
* make their nests in circles, The sun comes forth and goes down again in a circle
  - trees and shrubs of different kinds of materials they have collected
  - up a only small percentage of their diet when they rely solely on hunting for food
  - usual racket
  - wonderful life
* making nests or beavers building dams are examples of complex programmed behavior.
* manage to keep the number of insects down during most seasons.
* mask the symptoms of illness and injury.
* mature and change.
* migrate and build homes according to their unique inner senses
  - back to wintering areas
* migrate during different times of the year to find food
  - the day or night
  - for a variety of reasons
* migrate from the area during the winter
  - tundra during the colder months
* migrate in flocks, in a V-formation
  - order to find
  - instinctively based on the length of each day
  - long distances more in response to astronomical calendars than the weather
  - mainly to search for food
  - out of season and sing in the artificial daylight of the night
  - primarily to gain access to the best food sources
  - south to their winter homes
  - through aerial corridors called flyways
  - escape poor weather and food supply
  - more favorable weather
  - southern hemisphere to escape the cold
  - the taiga every year for the plentiful food supply
  - with the seasons
* migrating at night use the constellations and moon as guides
  - between North and South america tend to be funneled into a small area
* mostly occur in pairs or small family parties
  - seen are waterfowls, which are supported by presence of algae in the surrounding lakes
  - use their keen eyesight to find food
* move among feeders and spread diseases as they go
  - back and forth in route to feeding and roosting sites
* move from exposed coasts to more protected areas in autumn
  - place to place in search of food
  - in the grass taking flight at the movement of horse and rider
* move through the air by pulling themselves forward like a person rowing a boat
  - changing seasons to better utilize available habitats
  - to saline lakes and reservoirs until playas thaw
* naturally love to perch on branches and chew away at the bark and leaves
  - renew their feathers at least once a year
* need amounts
  - animal proteins
  - calorie food
* need large areas
  - medical care
  - vital energy
* nest alongside channels
  - at a wide variety of heights, from ground level to the tops of trees
* nest in artificial cavities
  - it every year
  - suitable habitats
  - nearby and sing among the leaves
  - on mountains
* nesting at the forest edge are at special risk
  - in aggregations can also benefit from group defense
  - on a scrape typically use grass instead of sticks for their nests
* never seem to get sick when they fly
  - sing the songs of another species
  - stop singing their song of hope
* normally achieve thrust during flight by flapping their wings
  - make up only a small percent of the diet
  - move among feeders and can spread diseases as they go
* now live almost everywhere on Earth.
* obviously detect polarized light much differently and more efficiently than do humans.
* occasionally feed on the caterpillars
  - squawk as they pass overhead
* occupy a diverse range of niches and are sensitive indicators of ecosystem health
  - prominent place in Italian superstitions concerning death
  - every habitat on Earth
* offer many examples of monogamy.
* often are frightened of children because of their sometimes abrupt activity or sudden noise
  - bite the ones they love the most
  - chew on objects and can ingest fatal fragments of lead
  - dig around on the bottom of their cages, sometimes in fecal material
  - fall into open chimneys and become stuck at the bottom
  - feature large, ornate bunches of feathers which they use during mating rituals
* often fly far away from the parent plant and disperse the seeds in their droppings
  - great distances to search out seasonal fruits
  - get quite frantic when they are separated from their mates
  - gobble from the roost and then go silent when they hit the ground
  - grow too large for their nests before they are able to fly
  - have a hopping gait and the affected area is swollen and warm to the touch
* often hide illness and weight change is one of the few methods of recognizing a problem
  - their illness until they are too sick to hide it anymore
  - ingest the toxic crude oil in an attempt to preen themselves
  - meet the technical criteria, such as sensitivity to environmental changes
  - migrate from wetland to wetland on their migration path, and some even go there to nest
  - nest in the exact same location as the previous year
  - overeat or chew on food dishes out of boredom
  - panic when let loose so there are a few precautions to take
  - rely upon worms as a primary source of food
  - resort to dust baths in their attempt to combat the lice
  - show stained wings where they repeatedly wipe their eyes
* often take refuge in dense thickets of plants, such as brambles, hollies, and viburnums
  - two or three weeks to die after their lead meal
  - travel quite a distance before finding the materials needed to build their nests
  - utter a soft chuck call when alone
  - visit many feeding stations in a neighborhood
  - wipe the seeds off their beaks onto other branches, helping to spread the plants
* only have a few tablespoons of blood in their veins, and any bleeding can be life-threatening.
* open beaks
* peck at seed, simulating feeding behavior in their natural habitat.
* peck out holes in the tree to build a nest, to lay eggs, and to eat bugs hiding in the tree
  - seeds to eat, scattering more to germinate into new plants
* perch high and low
* perch on hazard markers and hunt insects in the rough
  - ledges to scan for food and predators, and for nesting
  - surfaces
  - vertical surfaces
  - with the base of their foot, wrapping the toes around a perch
* pick flies, ticks and other insects off the skin of hippos.
* pick the fruit, fly away to eat, and drop the seeds
  - pellets up as they do small stones, to grind food in the gizzard
* pick up germs and disease easily
* picking up the infected egg also infect themselves with Blackhead.
* pile on top of each other as they incubate the eggs.
* play a major role in controlling insects
  - the distribution of the seeds
  - role in reducing dieback
  - special role in many fields of biology
  - very important part in the natural control of insects and in the dispersal of seeds
  - vital role in the balance of nature
  - an important role in all of Earth's environments
  - critical roles
* play important roles in many ecosystems
  - the lives of people
* poke holes in the outer skin, and the holes enlarge each year as new bird families nest.
* possess a four chambered heart
  - remarkable abilities to navigate
* preen by rubbing the oil into their feathers with their beaks.
* preen to clean their feathers and to repair and realign loosened feather barbules
  - pick parasites from their skin
  - remove parasites and to clean and oil their feathers
* prefer areas
  - baths with textured bottoms that provide firm footing
  - freshly made food
* prefer little or no unusual odors present
  - to no unusual odors in their habitats
  - open, sunny spots
  - playing with toys they can chew up
* prefer to be high up and against a wall
  - feed their nestlings moist, soft foods
  - fly out through the top rather than the bottom
  - wild sources of food, taking only about a quarter of their diets from backyard feeders
* prepare the food before eating by removing hulls from seeds or inedible parts from prey.
* produce large external eggs, the most elaborate reproductive cells of any animal
* produce sound at the base of the tracheal tube, in the syrinx
  - by ventriloquism
  - sperm and egg cells just as mammals do, but most male birds lack a copulatory organ
* provide a key that can open the secrets of environmental health and degradation
  - recreational values
  - several modern examples of how extinction can occur
  - the thrust and lift from their wings when they flap and soar
* puff up their feathers for various reasons.
* pull apart the single strands of pieces of rope or string.
* quickly diminish in number and variety
  - strip fruit from trees
  - their young in the same places they find cover
* raised in captivity are host to a reservoir of diseases and are of a poorer genetic strain.
* range from budgies to macaws
  - the little sparrow to the grand bald eagle
* range in age from day old to flight ready
  - size from thumb-sized hummingbirds to ostriches larger than a big man
* reach sexual maturity in three to five years
* really appreciate having some areas of dense cover and some more open areas
  - emit many different sounds
  - oxygenated air when they breathe in and when they breathe out
* recognize details and they can tell the difference in colors.
* reduce insect attacks.
* regulate their body temperature by raising and lowering their feathers.
* regurgitate food from an organ called the crop
  - to feed their mate, or to feed their chicks
  - the fluke's eggs in their droppings, which are eaten by horn snails
* relish eating the fruit, and seeds passing through their digestive tract are viable.
* rely on sight
  - sounds for survival
  - vision to choose mates, find food and scan for predators, for example
  - upon their feathers to help adapt to temperature changes
* remain virtually absent from the fossil record.
* represent a classic example of paraphyly
  - living dinosaurs according to many evolutionists
* reproduce sexually.
* require a place of cover or shelter if they are going to become long term residents
  - good ventilation without drafts in order to perform properly
  - medical care the same as any other animals
  - visual stimulation and social interaction to be happy, healthy, and talkative
* residing at lower latitudes, however, tend to be non-migratory.
* respond positively to communication from their own kind.
* return at dusk and are active in courtship around dawn
* return to same locations
  - their northerly breeding grounds just long enough to breed and raise young
  - warm currents of air to find relief at great heights
* risk exposure at poultry shows, bird swaps, and live-bird sales.
* roost, and other animals curl up to sleep.
* routinely change their feeding behavior
  - preen themselves, using the oil from the preen gland near the tail
* save energy and are able to travel great distances by riding the air currents.
* scatter the fig seeds around the branches of another tree.
* scratch for insects and tiny pebbles for their crops.
* see only their reflection with the unique two-way mirror
  - their reflections in windows and think intruders are in their territory
* seek the forest and build there and sing
  - fruit as a food source, particularly in the winter season
* seem so delicate, yet they survive cold winters, fly incredible distances.
* seem to avoid picking damp or wet feathers
  - be the key pests
  - fly faster in spring migration than in the fall
  - follow ships, sharp pointed black and white wings outstretched
  - have evolved another cellular defence against ageing
  - navigate like sailors once did, using the sun, moon and stars for direction
  - represent the bridge between the heavens and the earth
  - respond to a falling barometer and move into roosting cover early
  - thrive on a routine that is consistent
* select fruits with more antioxidants during autumn migration
* serve an important role in maintaining essential ecological balance.
* serve as a barometer of our environment
  - reservoir for the virus
  - carriers of the West Nile virus
  - important natural hosts for the virus in the disease cycle
  - the reservoir for West Nile virus, after being bitten by an infected mosquito
  - to disperse the seeds to new locations
* settle in the leaves.
* share ancestors
  - their feathers and grow a new set at least once a year
* show a variety of stopover and flight strategies
  - an amazing ability to orient themselves and home in on their destination
  - quite distinct changes in both external and internal appearance
  - responses
  - the most apparent intelligence in meeting the problems of getting their food
  - up as frequent and important prey items in several areas
* signify the dangerous noctural powers of women who act as witches.
* similarly have the right ovary atrophied.
* sing after a storm.
* sing and eagles soar
  - eyelashes bat
  - flowers bloom
  - small beasts live on bough and on moulded ground their older brothers shunned
  - beautiful and diversified songs
  - due to instinct
  - far more frequently in the spring while setting up territories
* sing for many reasons, from advertising for a mate to warning off intruders
  - in fruit trees
* sing in the eaves and in the trees
  - long, complex songs either to mark territory or as mating rituals
  - lullabies, squirrels work their nests, locusts wing dancing the late summer call
  - most vigorously in spring and males without mates are the most vigorous singers
* sing their songs and everything drips with raindrops
  - in the fresh air of a mountain meadow
  - to convey their motivational message
* sing to defend territories and attract mates
  - warn intruders to keep out, and when such diplomacy fails, they fight
* sing, ducks swim, and cattle graze nearby
  - fly and scurry about in their never-ending search for food
  - they protect their territory, they attract mates, they hunt for food
* sip nectar from blossoms such as the rare Florida butterfly orchid.
* sit at feeders.
* slip quietly to their nests or favorite roosts.
* slowly starve.
* soar and dive.
* soar,glide, flap their wings quickly, hover,and dive.
* sometimes breed in their second year, before they attain adult plumage
  - build nests on climbing routes
  - feed on the larvae and pupae but seem to prefer other insects
  - fight by flying toward each other and locking bills in the air
  - fly into the house or into windows
  - get into compulsive preening behavior
  - swallow tiny stones
* species all reproduce sexually.
* spend most of their time foraging for food
  - the majority of their time standing on their feet so good perches are essential
* sport flashy plumage, sing melodic songs, perform dramatic mating rituals.
* spread Canary Island date palm seeds, which float down rivers and streams
  - barberry seeds by eating berries that grow on the bushes
  - seeds when they eat the fruit
* spread the encephalitis virus and mosquitoes spread the disease to humans
  - seeds after eating the often abundant fruits
* squawk to warn of danger.
  - their toes
* start chirping in the spring
  - feather picking and other vices during a molt more than at any other time
  - off low but typically gain altitude very rapidly as the day quickly heats up
  - to call as the evil creatures melt in the light of day
  - using calls early in their lives, in some species even before they are hatched
* starve on diets lacking sufficient vitamins - seeds are deficient in many vitamins
  - old food
  - poor diets
* stay aloft by riding rising air currents
  - away when there's a predator nearby
* still call, and rats run unmolested
  - fly free
* stimulate economies just by being beautiful.
* store fat for winter, when food is lean
  - food in their crop which pouch in their throat
* stressed by low temperatures are much more susceptible to illness.
* strut at the same places throughout the season.
* suffering from the active disease usually recover rapidly
  - trichomonosis often look lethargic and have fluffed-up feathers
  - on water derived from foods they eat and from eating snow
* swallow beetles
* swim near each other, holding their heads low to the water.
* symbolise death in myth, certainly - in Jungian terms.
* symbolize fulfillment of wishes, and fertility.
  - great care of their eggs
  - off at sunrise
  - their role as insect predator seriously
* telegraph much of what they are thinking by where, when, and how they look at things.
* tend to be frequent guides in the East
  - monogamous whereas mammals tend to be polygamous
  - more flighty during the rearing period
* tend to be very active much of the time
  - inactive, and can be hard to find
  - conceal signs of illness until they are so sick that they can no longer compensate
  - concentrate during the winter months around a reliable food source
  - follow ridges during migration
  - have ears that detect the same kinds of sounds as man
  - look at situations after the fact and determine if all went well
  - lose more water via evaporation than mammals due to their higher metabolic rates
  - make droppings often because they have such a high metabolism and eat often
  - mask discomfort or illness, making it difficult to determine their general well being
  - pick out what they like to eat first and leave the rest
  - pump more blood than mammals too
  - seek high protein foods to feed nestlings and fledglings
  - shed the organism under conditions of stress
  - shorten their tails
  - sort themselves out in tall forests
* therefore tend to avoid both species.
* to adapt to habitats
* to find adequate food
* travel less, and such animals as bears and woodchucks sleep both day and night.
* travel thousands of kilometers to migrate
  - miles to their destinations through all kinds of weather
  - to and from the neotropics with built-in survival kits
* treated with antibiotics can develop a secondary respiratory infection caused by yeast.
* trill their calls near and far.
* try to hide their illnesses and their injuries and rarily show pain.
  - into dogs
* typically accept the first moving animal or thing that they see as their parent.
* use a combination of their beaks and feet to excavate burrow nests
  - variety of equipment when they land
  - beaks and tongues for eating, e.g., woodpeckers vs. hummingbirds
  - both areas as habitats
  - cavities to protect their eggs and young from predators
  - colors and patterns to communicate with each other
  - counter current exchange to warm the cold blood returning from the feet back up
  - daylength to time their reproductive cycles
  - dense tangles of shrubbery or trees as places to hide from predators
  - energy to migrate thousands of miles
  - feeders in the spring to supplement what food they do find
  - gravel to digest their food and grit is one of the major components of their presents
  - habitats that meet their needs for food, water, shelter and nest sites
  - it for perching, foraging, and nesting
  - many things as they migrate
  - more energy in winter to keep warm
  - muscle power to develop thrust, and except for gliders, aeroplanes use motors
  - several visual and nonvisual orientation mechanisms to navigate
  - shelter for protection from the elements
  - small branches and twigs to build their nests
  - song to help defend territories and sometimes to attract mates
* use strong muscles in their breasts to flap their wings
  - sunlight by preening their feathers
* use the position of the sun
  - same laws of physics to fly as any winged craft or creature
  - snags for perches, nesting and sources of insects for food
  - stars, sun, moon and even the Earth's magnetic field to navigate
* use their beaks to eat and pick up items, as well as to balance and get around
  - rub their feathers with oil secreted by the a. follicles
  - down to keep warm, too
  - feathers to protect their bodies
  - syrinx to make sounds while humans use their larynx
  - toes to wrap around a wire or tree branch so that they can perch without falling
* use their tongues for a variety of functions also
  - of jobs also
  - wings in repeated quick forward and backward movements to fly in the air
  - visual cues and are attracted to bold red-coloured berries
  - vocalizations as a means of communication
* usually are caught by goshawks on the ground, but some are taken in flight as well
  - die from a secondary infection
  - feed in four types of areas - ground, tabletop, hanging and tree trunk
  - fly to water in early evening and morning
  - get sick from psittacosis
  - have a bath pan so they can bathe as much as they want when they want
  - molt in a particular pattern, so that in the wild they are always able to fly
  - scream at dawn and dusk
  - wait to migrate until the passage of weather fronts
* utilising tidal flats often face vast areas of seemingly uniform feeding grounds.
* vary even within species and the idea here is to identify each by species
  - in sensitivity toward temperature and other environmental conditions
  - with the season and many of the more common species can be seen all year
* view people as part of their flock and therefore act accordingly.
  - only on their hind legs
* walk, run, hop, swim, perch, cling, fly and even dig.
* want food
* waste a lot of body heat trying to keep warm in exposed areas.
* watching is one of the fastest growing hobbies in the United States.
* whack into towers during spring or fall migration periods.
* will have beaks.
* wintering in the east prefer wetlands and resevoirs.
* working bait schools on the surface can be a dead giveaway to fish feeding from below.
* writhe like whips.
* zoom overhead gulls with black heads, brown and white pelicans, purple martins.
+ Albatross, Biology, Flight: Procellariiformes :: Seabirds
  * Albatrosses need to take salt out of their body because they drink ocean water. All birds have a large gland at the top part of their bill, above their eyes. This gland is sometimes useless to birds that do not need it. However, albatrosses use them to help take out saltwater. Scientists are not sure how it works exactly. However, they know that it helps take out the salt. It makes a liquid that makes the saltwater drip out of their nose.
+ Bird flight: Fluid mechanics
  * Flight is a method of moving through the air. To do this, birds use wings with light, hollow bones and feathers on them. Birds have a streamlined body shape, so that they slip through air more easily.
  * Birds can move by flapping their wings, or they can stay in the same place. This is called hovering, with rapid wing beats, as with the kestrel. They glide from the top of a warm air current, and then move on to another warm air current. That way birds like buzzards can fly all day while using little energy
  - nest, Types of nests, Ground and mound nests
  * Many birds nest right on the ground. After carving out a little hole, ground and mound nesters line the nest with grass or other materials. Geese even pick feathers from their breasts and make a nice downy bed for their eggs. Most ducks, geese, and quail like the ground for nesting. Penguins nest on the ground, too, pushing rocks around the nest to keep it from washing away with flood waters. Usually, males make ground nests
+ Bird, Behaviour, Communication
  * All birds make sounds to communicate. The types of noises that they make are different. All birds have 'cries' which are the sounds to communicate. Some birds can also 'sing'. These birds are called 'songbirds'. Some songbirds are robins, larks, canaries, thrushes, nightingales and crows.
  * All birds make sounds to communicate. The types of noises that they make are different. All birds have 'cries' which are the sounds to communicate. Some birds can also 'sing'. These birds are called 'songbirds'. Some songbirds are robins, larks, canaries, thrushes, nightingales and crows. Birds that are 'not' songbirds are pigeons, seagulls, eagles, owls and ducks. Parrots are not songbirds, even though they can be taught to sing human songs
  - Hatching
  * Once the 'hen' has mated, she produces fertile eggs which have chicks growing inside them. She lays the eggs in the nest. There might be just one egg or a number of them, called a 'clutch'. Emus might lay as many as fifteen huge dark green eggs in a clutch. After the eggs are laid, they are 'incubated', or kept warm so the chicks form inside. Most birds stay together for the whole nesting season, and one advantage is that the work is shared. Many birds take turns sitting on the eggs, so that each adult can feed
  * When the breeding season arrives, the birds choose partners. Some birds are mated for life, like married couples. These birds include pigeons, geese, and cranes. Other birds look for new partners each year and sometimes a male bird or 'cock' will have several wives
  - Bird colours
  * Birds come in a huge range of colours. These colours can be useful to a bird in two ways. The colours can either help to hide the bird, or they can help to attract attention to the bird when it is looking for a mate
+ Bird, Bird colours, Bird camouflage
  * Many birds are brown, green or grey. Brown is the most common colour. Brown birds include sparrows, emus, thrushes, larks, eagles, falcons and the female birds of many species such as wrens, ducks, blackbirds and peacocks. When a brown bird is in long grass or among tree trunks or rocks, it is 'camouflaged'. Birds that live in long grass often have brown feathers streaked with black which looks like shadows. A Bittern is almost invisible in long reeds
  - Noticeable colours
  * Many birds are not camouflaged but stand out with vivid colours. They are usually male birds whose females are dull and camouflaged. They function of the colours is two-fold. Adaptive colouration in animals'. First, the colours help them get mates, and second, the colours identify them to other males of the same species. Many birds are territorial, especially in the nesting season. They give out territory sounds and are easily seen. This lets other males know they will defend their territory
  - Birds and people
  * Some birds are eaten as food. Most usually it is the chicken and its eggs, but people often also eat geese, pheasants, turkeys and ducks. Other birds are sometimes eaten are emus, ostriches, pigeons, grouse, quails, doves, woodcocks, and even songbirds. Some species have died out because they have been hunted for food, for example the Dodo, and the Passenger Pigeon
  * Most birds can fly. They do this by pushing through the air with their wings. Flapping keeps the air current moving to create lift and also moves the bird forward.
  * Some birds can 'glide' on air currents without flapping. Many birds use this method when they are about to land. Some birds can also 'hover' and remain in one place. This method is used by birds of prey such as falcons that are looking for something to eat. Seagulls are also good at 'hovering', particularly if there is a strong breeze. The most expert 'hovering' birds are tiny hummingbirds which can beat their wings both backwards and forwards and can stay quite still in the air while they dip their long beaks into flowers to feed on the sweet nectar
+ Coelurosauria, Fossil history
  * There is consensus among paleontologists that birds are the descendants of coelurosaurs. Birds are classified by most paleontologists as belonging to the subgroup Maniraptora. Padian K. 2004.
+ Cornus canadensis: Asterids :: Plant physiology
  * The fruits are edible with a mild flavour somewhat like apples. The large seeds within are somewhat hard and crunchy. Birds are the main dispersal agents of the seeds, consuming the fruit during their fall migration. In Alaska, bunchberry is an important forage plant for mule deer, black-tailed deer and moose, which consume it throughout the growing season. Hanley, Thomas A. 'et al' 1987. Forest stand-age related differences in apparent nutritional quality of forage for deer in southeastern Alaska. Proceedings of the symposium on plant-herbivore interactions'.
  * Birds are found on every continent of the world. Birds of different types can live in freezing cold environments, and others can live in hot deserts. Birds live in forests, in grasslands, on cliff faces, in river banks, on stony sea shores, down mine shafts and in the roofs of houses.
  * Different types of birds eat different foods. Most birds are carnivorous meaning that they eat flesh, at least some of the time. Many birds live on insects or on fish. Some eat small reptiles and mice. Birds of prey eat mammals and other birds. Some birds are scavengers and eat the bodies of creatures that have died. Many birds such as parrots and finches live on seeds and fruit.
  * Different types of birds eat different foods. Most birds are carnivorous meaning that they eat flesh, at least some of the time. Many birds live on insects or on fish. Some eat small reptiles and mice. Birds of prey eat mammals and other birds. Some birds are scavengers and eat the bodies of creatures that have died. Many birds such as parrots and finches live on seeds and fruit. Some birds that eat mainly seeds feed their young on insects.
  * Different types of birds eat different foods. Most birds are carnivorous meaning that they eat flesh, at least some of the time. Many birds live on insects or on fish. Some eat small reptiles and mice. Birds of prey eat mammals and other birds. Some birds are scavengers and eat the bodies of creatures that have died. Many birds such as parrots and finches live on seeds and fruit. Some birds that eat mainly seeds feed their young on insects. A few types of birds eat green plants, but only one species lives on leaves. Hummingbirds and Honeyeaters live on the nectar or honey in flowers.
+ Crane fly, How crane flies live: Flies
+ Feather, Moulting: Animal anatomy
  * Birds lose their feathers at certain times. This is called 'moulting'. By moulting, a bird can replace old feathers with new ones. Many birds moult once every year.
+ Kakadu National Park, Fauna: Protected areas of the Northern Territory :: Ramsar sites :: Australian National Heritage List :: World Heritage Sites in Australia :: National parks in Australia
+ Migration: Ecology :: Zoology :: Ethology
  * For example, caribou in the Arctic go south in winter and return in summer when it is warmer. Many birds migrate, such as geese and storks.
+ Origin of birds, Chinese bird fossils, Cretaceous fossils: Theropods :: Birds :: Evolutionary biology :: Fossils
  * The only ones that survived were the birds. The birds, therefore, are not just the descendents of reptiles, but the descendents of theropod dinosaurs. Birds are the last surviving dinosaurs.
+ Skin: Integumentary system
  * Skin' is the outside covering of animals. The skin of different kinds of animals is very different. Many kinds of animals have hair or fur on their skin. Birds have feathers on their skin. Most fish, and reptiles like snakes and lizards, have scales on their skin.
+ Thrust, Examples: Physics :: Force