broad-billed flycatcher
A species of monarch flycatcher, Myiagra ruficollis, of northern Australia, southern New Guinea, and the Lesser Sundas, having a bill that is much broader than other species of the same genus.

broad-billed parrot
A large extinct parrot of species Lophopsittacus mauritianus, endemic to Mauritius.

broad-billed sandpiper
A type of sandpiper, (Calidris falcinellus)

broad-winged hawk
Buteo platypterus, a small hawk of the Buteo genus.

broadbill
Any of several ducks having a broad bill, including the shoveler.
Any of several small passerine birds of the family Eurylaimidae (Asian and Grauer's broadbills) or Calyptomenidae (African and green broadbills).
A swordfish, Xiphias gladius.

broadbills
plural of broadbill

brolga
A large grey crane (Antigone rubicunda, syn. Grus rubicunda), of northern and eastern Australia.

brolgas
plural of brolga

bronze parotia
A bird of paradise of species Parotia berlepschi.

bronze-winged jacana
a wader of species Metopidius indicus, in the family Jacanidae.

brown boobook
A boobook owl of species Ninox scutulata, found in South Asia and Southeast Asia.

brown creeper
A North American species of treecreeper, Certhia americana, known for walking up tree trunks looking for insects in the bark.
A passerine bird found only in New Zealand, the pipipi, Mohoua novaeseelandiae.

brown falcon
Falco berigora, a member of the falcon genus found in the drier regions of Australia.

brown goshawk
A bird of prey, Accipiter fasciatus, of Australia, southern Indonesia, New Guinea, and the western Pacific, one of the many species of Accipiter present in the region.

brown honeyeater
A species of honeyeater, Lichmera indistincta, of New Guinea and Australia.

brown inca
Coeligena wilsoni, a species of hummingbird found in South America.

brown oriole
A passerine songbird, Oriolus szalayi, of Indonesia and Papua New Guinea.

brown pelican
Pelecanus occidentalis, a small pelican found in the Americas.

brown rock chat
A bird species, Oenanthe fusca, found in northern and central India; an individual of this species.

brown shrike
Lanius cristatus, a bird in the shrike family (Lanius) that is found mainly in Asia. It is closely related to the red-backed shrike (L. collurio) and isabelline shrike (L. isabellinus).

brown teal
A member of the dabbling duck subfamily endemic to New Zealand; Anas chlorotis.

brown thrasher
A songbird found in eastern USA, taxonomic name Toxostoma rufum, known for its large song repertoire

brown tinamou
A tinamou, Crypturellus obsoletus.

brown-billed scythebill
Campylorhamphus pusillus, a species of scythebill bird in the genus Campylorhamphus.

brown-rumped minivet
Synonym of Swinhoe's minivet; the bird Pericrocotus cantonensis.

brown-tailed rock chat
A bird species, Oenanthe scotocerca, found in parts of Africa from Chad to Ethiopia

brubru
Also more fully as brubru shrike: a bird in the bushshrike family found in sub-Saharan Africa (Nilaus afer).

brubrus
plural of brubru

brush bronzewing
A pigeon of species Phaps elegans, endemic to Australia.

brush cuckoo
A species of cuckoo, Cacomantis variolosus, of Southeast Asia and Australasia.

brush turkey
Alternative spelling of brush-turkey.

brush-turkey
Any of several species of large birds, found in Australia and New Guinea, in the megapode (turkey-like) family Megapodiidae.

brush-turkeys
plural of brush-turkey

brushland tinamou
A tinamou, Nothoprocta cinerascens.

brushturkey
Alternative spelling of brush-turkey.

brushturkeys
plural of brushturkey

bubo
An inflamed swelling of a lymph node, especially in the armpit or groin, due to an infection such as bubonic plague, gonorrhea, tuberculosis, or syphilis.

buboe
Alternative form of bubo.

buboes
plural of bubo
plural of buboe

bubos
plural of bubo

budgereegah
Archaic form of budgerigar.

budgereegahs
plural of budgereegah

budgerigar
A species of small green parakeet, Melopsittacus undulatus, native to inland Australia; a common cagebird throughout the world and bred in many colour varieties.

budgerigars
plural of budgerigar

budgie
A budgerigar.

budgies
plural of budgie

buff-bellied pipit
Anthus rubescens, a small songbird found on both sides of the northern Pacific.

buff-breasted sandpiper
Any of species Calidris subruficollis of sandpipers, that breed in the North American tundra and migrate as far as Argentina.

bufflehead
A duck in the goldeneye genus, Bucephala albeola.
One who has a large head; a heavy, stupid fellow.

buffleheads
plural of bufflehead

buffy fish owl
Malay fish owl (Ketupa ketupu), of the family Strigidae.

bulbul
Any of several passerine songbirds, of the family Pycnonotidae (currently, 27 genera recognized), native to Africa and Eurasia.
Any of the bulbul species of the Middle East, popular in poetry; sometimes known as the ‘nightingale of the East’.

bulbuls
plural of bulbul

bullfinch
The Eurasian bullfinch (Pyrrhula pyrrhula).
Any of various other Old World finches in the genus Pyrrhula.
A large, thick quickset hedge.
An obstacle for a horse, consisting of a solid fence with brush above it, through which the horse should jump.

bullfinches
plural of bullfinch

bumblekites
plural of bumblekite

buntings
plural of bunting

burrowing owl
A small owl of the Americas (Athene cunicularia or Speotyto cunicularia), which lives in holes, often dug by prairie dogs.

burrowing owls
plural of burrowing owl

burrowing parrot
A South-American conure, Cyanoliseus patagonus

bush stone-curlew
A species of stone-curlew, Burhinus grallarius, of Australia and southern New Guinea.

bush thick-knee
Synonym of bush stone-curlew.

bushshrikes
plural of bushshrike

bushtit
Any of the long-tailed tits of the family Aegithalidae
Any of the long-tailed tits of the family Aegithalidae

bushtits
plural of bushtit

bushwren
An extinct species of small wrenlike almost flightless passerine bird endemic to New Zealand, Xenicus longipes.

bushwrens
plural of bushwren

bustard
Any of several large terrestrial birds of the family Otididae in the order Otidiformes that inhabit dry open country and steppes in the Old World.
bastard

bustard quail
Synonym of buttonquail (Turnix spp. etc.)

bustards
plural of bustard

butcher birds
plural of butcher bird

butcherbird
Any of the magpie-like birds in the genus Cracticus, of Australia and New Guinea.
Any of the shrikes in the genus Lanius.
Any of the shrikes in the genus Lanius.

butcherbirds
plural of butcherbird

buteo
Any of the broad-winged soaring raptors of the genus Buteo.

buteos
plural of buteo

butterbirds
plural of butterbird

button quails
plural of button quail

buttonquail
Any of several species of small terrestrial birds, principally in the genus Turnix of the family Turnicidae.

buttonquails
plural of buttonquail

buzzard
Any of several Old World birds of prey of the genus Buteo with broad wings and a broad tail.
Any scavenging bird, such as the American black vulture (Coragyps atratus) or the turkey vulture (Cathartes aura).
In North America, a curmudgeonly or cantankerous man; an old person; a mean, greedy person.
A blockhead; a dunce.
Synonym of double bogey.
A fighter plane.
The insignia of a colonel, or a petty officer within the navy.
A military discharge (due to the military discharge certificate).

buzzard-eagle
Any of a number of birds with the look of eagles but the smaller size of buzzards (hawks), principally of genus Butastur.

buzzards
plural of buzzard

cackling goose
Branta hutchinsii, a North American bird of the genus Branta of black geese, which contains species with largely black plumage, distinguishing them from the grey Anser species.

cacochylia
Defective formation or absorption of chyle.

cactus wren
a wren (Campylorhynchus brunneicapillus), native to the southwestern United States southwards to central Mexico.

cactus wrens
plural of cactus wren

cagou
Alternative form of kagu (“type of bird”).

cagous
plural of cagou

cahow
An endangered nocturnal burrowing bird (Pterodroma cahow), from Bermuda.