This is a list of the bird species recorded in Uruguay. The avifauna of Uruguay has 501 confirmed species, of which nine have been introduced by humans, 76 are rare or vagrants, and four are extirpated or believed extinct. An additional eight species are hypothetical (see below). None are endemic.
 Unless an entry is cited otherwise, the list of species is that of the South American Classification Committee (SACC) of the American Ornithological Society. Entries from other sources are not included in the above counts. The list's taxonomic treatment (designation and sequence of orders, families, and species) and nomenclature (common and scientific names) are also those of the SACC.
 The following tags have been used to highlight certain categories of occurrence.
  Order: Rheiformes   Family: Rheidae
 The rheas are large flightless birds native to South America. Their feet have three toes rather than four which allows them to run faster. One species has been recorded in Uruguay.
 Order: Tinamiformes   Family: Tinamidae
 The tinamous are one of the most ancient groups of bird. Although they look similar to other ground-dwelling birds like quail and grouse, they have no close relatives and are classified as a single family, Tinamidae, within their own order, the Tinamiformes. They are distantly related to the ratites (order Struthioniformes), that includes the rheas, emus, and kiwis. Three species have been recorded in Uruguay.
 Order: Anseriformes   Family: Anhimidae
 The screamers are a small family of birds related to the ducks. They are large, bulky birds, with a small downy head, long legs, and large feet which are only partially webbed. They have large spurs on their wings which are used in fights over mates and in territorial disputes. Two species have been recorded in Uruguay.
 Order: Anseriformes   Family: Anatidae
 Anatidae includes the ducks and most duck-like waterfowl, such as geese and swans. These birds are adapted to an aquatic existence with webbed feet, flattened bills, and feathers that are excellent at shedding water due to an oily coating. Twenty-three species have been recorded in Uruguay.
 Order: Galliformes   Family: Cracidae
 The Cracidae are large birds, similar in general appearance to turkeys. The guans and curassows live in trees, but the smaller chachalacas are found in more open scrubby habitats. They are generally dull-plumaged, but the curassows and some guans have colorful facial ornaments. Two species have been recorded in Uruguay.
 Order: Galliformes   Family: Odontophoridae
 The New World quails are small, plump terrestrial birds only distantly related to the quails of the Old World, but named for their similar appearance and habits. One species has been recorded in Uruguay.
 Order: Phoenicopteriformes   Family: Phoenicopteridae
 Flamingos are gregarious wading birds, usually 3 to 5 feet (0.9 to 1.5 m) tall, found in both the Western and Eastern Hemispheres. Flamingos filter-feed on shellfish and algae. Their oddly shaped beaks are specially adapted to separate mud and silt from the food they consume and are used upside-down. Two species have been recorded in Uruguay.
 Order: Podicipediformes   Family: Podicipedidae
 Grebes are small to medium-large freshwater diving birds. They have lobed toes and are excellent swimmers and divers. However, they have their feet placed far back on the body, making them quite ungainly on land. Five species have been recorded in Uruguay.
 Order: Columbiformes   Family: Columbidae
 Pigeons and doves are stout-bodied birds with short necks and short slender bills with a fleshy cere. Ten species have been recorded in Uruguay.
 Order: Cuculiformes   Family: Cuculidae
 The family Cuculidae includes cuckoos, roadrunners, and anis. These birds are of variable size with slender bodies, long tails, and strong legs. Eight species have been recorded in Uruguay.
 Order: Nyctibiiformes   Family: Nyctibiidae
 The potoos (sometimes called poor-me-ones) are large near passerine birds related to the nightjars and frogmouths. They are nocturnal insectivores which lack the bristles around the mouth found in the true nightjars. One species has been recorded in Uruguay.
 Order: Caprimulgiformes   Family: Caprimulgidae
 Nightjars are medium-sized nocturnal birds that usually nest on the ground. They have long wings, short legs, and very short bills. Most have small feet, of little use for walking, and long pointed wings. Their soft plumage is camouflaged to resemble bark or leaves. Six species have been recorded in Uruguay.
 Order: Apodiformes   Family: Apodidae
 Swifts are small birds which spend the majority of their lives flying. These birds have very short legs and never settle voluntarily on the ground, perching instead only on vertical surfaces. Many swifts have long swept-back wings which resemble a crescent or boomerang. Two species have been recorded in Uruguay.
 Order: Apodiformes   Family: Trochilidae
 Hummingbirds are small birds capable of hovering in mid-air due to the rapid flapping of their wings. They are the only birds that can fly backwards. Eight species have been recorded in Uruguay.
 Order: Gruiformes   Family: Aramidae
 The limpkin resembles a large rail. It has drab-brown plumage and a grayer head and neck.
 Order: Gruiformes   Family: Rallidae
 Rallidae is a large family of small to medium-sized birds which includes the rails, crakes, coots, and gallinules. Typically they inhabit dense vegetation in damp environments near lakes, swamps, or rivers. In general they are shy and secretive birds, making them difficult to observe. Most species have strong legs and long toes which are well adapted to soft uneven surfaces. They tend to have short, rounded wings and to be weak fliers. Seventeen species have been recorded in Uruguay.
 Order: Charadriiformes   Family: Charadriidae
 The family Charadriidae includes the plovers, dotterels, and lapwings. They are small to medium-sized birds with compact bodies, short thick necks, and long, usually pointed, wings. They are found in open country worldwide, mostly in habitats near water. Eight species have been recorded in Uruguay.
 Order: Charadriiformes   Family: Haematopodidae
 The oystercatchers are large and noisy plover-like birds, with strong bills used for smashing or prising open molluscs. Two species have been recorded in Uruguay.
 Order: Charadriiformes   Family: Recurvirostridae
 Recurvirostridae is a family of large wading birds which includes the avocets and stilts. The avocets have long legs and long up-curved bills. The stilts have extremely long legs and long, thin, straight bills. One species has been recorded in Uruguay.
 Order: Charadriiformes   Family: Chionididae
 The sheathbills are scavengers of the Antarctic regions. They have white plumage and look plump and dove-like but are believed to be similar to the ancestors of the modern gulls and terns. One species has been recorded in Uruguay.
 Order: Charadriiformes   Family: Pluvianellidae
 The Magellanic plover is a rare wader found only in southernmost South America. In its build and habits it is similar to a turnstone. Its upperparts and breast are pale gray and the rest of the underparts are white. It has short red legs, a black bill and a red eye. In young birds, the eyes and legs are yellowish.
 Order: Charadriiformes   Family: Scolopacidae
 Scolopacidae is a large diverse family of small to medium-sized shorebirds including the sandpipers, curlews, godwits, shanks, tattlers, woodcocks, snipes, dowitchers, and phalaropes. The majority of these species eat small invertebrates picked out of the mud or soil. Variation in length of legs and bills enables multiple species to feed in the same habitat, particularly on the coast, without direct competition for food. Twenty-four species have been recorded in Uruguay.
 Order: Charadriiformes   Family: Thinocoridae
 The seedsnipes are a small family of birds that resemble sparrows. They have short legs and long wings and are herbivorous waders. One species has been recorded in Uruguay.
 Order: Charadriiformes   Family: Jacanidae
 The jacanas are a group of waders found throughout the tropics. They are identifiable by their huge feet and claws which enable them to walk on floating vegetation in the shallow lakes that are their preferred habitat. One species has been recorded in Uruguay.
 Order: Charadriiformes   Family: Rostratulidae
 Painted-snipes are short-legged, long-billed birds similar in shape to the true snipes, but more brightly colored. One species has been recorded in Uruguay.
 Order: Charadriiformes   Family: Stercorariidae
 The family Stercorariidae are, in general, medium to large birds, typically with gray or brown plumage, often with white markings on the wings. They nest on the ground in temperate and arctic regions and are long-distance migrants. Six species have been recorded in Uruguay.
 Order: Charadriiformes   Family: Rynchopidae
 Skimmers are a small family of tropical tern-like birds. They have an elongated lower mandible which they use to feed by flying low over the water surface and skimming the water for small fish. One species has been recorded in Uruguay.
 Order: Charadriiformes   Family: Laridae
 Laridae is a family of medium to large seabirds and includes gulls, kittiwakes, and terns. Gulls are typically gray or white, often with black markings on the head or wings. They have longish bills and webbed feet. Terns are a group of generally medium to large seabirds typically with gray or white plumage, often with black markings on the head. Most terns hunt fish by diving but some pick insects off the surface of fresh water. Terns are generally long-lived birds, with several species living in excess of 30 years. Twenty species have been recorded in Uruguay.
 Order: Sphenisciformes   Family: Spheniscidae
 The penguins are a group of aquatic, flightless birds living almost exclusively in the Southern Hemisphere. Most penguins feed on krill, fish, squid, and other forms of sealife caught while swimming underwater. Four species have been recorded in Uruguay.
 Order: Procellariiformes   Family: Diomedeidae
 The albatrosses are among the largest of flying birds, and the great albatrosses from the genus Diomedea have the largest wingspans of any extant birds. Eight species have been recorded in Uruguay.
 Order: Procellariiformes   Family: Oceanitidae
 The storm-petrels are the smallest seabirds, relatives of the petrels, feeding on planktonic crustaceans and small fish picked from the surface, typically while hovering. The flight is fluttering and sometimes bat-like. Until 2018, this family's species were included with the other storm-petrels in family Hydrobatidae. Four species have been recorded in Uruguay.
 Order: Procellariiformes   Family: Hydrobatidae
 Though the members of this family are similar in many respects to the southern storm-petrels, including their general appearance and habits, there are enough genetic differences to warrant their placement in a separate family. One species has been recorded in Uruguay.
 Order: Procellariiformes   Family: Procellariidae
 The procellariids are the main group of medium-sized "true petrels", characterised by united nostrils with medium septum and a long outer functional primary. Twenty-one species have been recorded in Uruguay.
 Order: Ciconiiformes   Family: Ciconiidae
 Storks are large, long-legged, long-necked, wading birds with long, stout bills. Storks are mute, but bill-clattering is an important mode of communication at the nest. Their nests can be large and may be reused for many years. Many species are migratory. Three species have been recorded in Uruguay.
 Order: Suliformes   Family: Fregatidae
 Frigatebirds are large seabirds usually found over tropical oceans. They are large, black-and-white, or completely black, with long wings and deeply forked tails. The males have colored inflatable throat pouches. They do not swim or walk and cannot take off from a flat surface. Having the largest wingspan-to-body-weight ratio of any bird, they are essentially aerial, able to stay aloft for more than a week. One species has been recorded in Uruguay.
 Order: Suliformes   Family: Sulidae
 The sulids comprise the gannets and boobies. Both groups are medium to large coastal seabirds that plunge-dive for fish. Three species have been recorded in Uruguay.
 Order: Suliformes   Family: Anhingidae
 Anhingas are often called "snake-birds" because of their long thin neck, which gives a snake-like appearance when they swim with their bodies submerged. The males have black and dark-brown plumage, an erectile crest on the nape, and a larger bill than the female. The females have much paler plumage especially on the neck and underparts. The darters have completely webbed feet and their legs are short and set far back on the body. Their plumage is somewhat permeable, like that of cormorants, and they spread their wings to dry after diving. One species has been recorded in Uruguay.
 Order: Suliformes   Family: Phalacrocoracidae
 Phalacrocoracidae is a family of medium to large coastal, fish-eating seabirds that includes cormorants and shags. Plumage coloration varies, with the majority having mainly dark plumage, some species being black-and-white, and a few being colorful. Two species have been recorded in Uruguay.
 Order: Pelecaniformes   Family: Ardeidae
 The family Ardeidae contains the bitterns, herons, and egrets. Herons and egrets are medium to large wading birds with long necks and legs. Bitterns tend to be shorter necked and more wary. Members of Ardeidae fly with their necks retracted, unlike other long-necked birds such as storks, ibises, and spoonbills. Twelve species have been recorded in Uruguay.
 Order: Pelecaniformes   Family: Threskiornithidae
 Threskiornithidae is a family of large terrestrial and wading birds which includes the ibises and spoonbills. They have long, broad wings with 11 primary and about 20 secondary feathers. They are strong fliers and despite their size and weight, very capable soarers. Five species have been recorded in Uruguay.
 Order: Cathartiformes   Family: Cathartidae
 The New World vultures are not closely related to Old World vultures, but superficially resemble them because of convergent evolution. Like the Old World vultures, they are scavengers. However, unlike Old World vultures, which find carcasses by sight, New World vultures have a good sense of smell with which they locate carrion. Three species have been recorded in Uruguay.
 Order: Accipitriformes   Family: Pandionidae
 The family Pandionidae contains only one species, the osprey. The osprey is a medium-large raptor which is a specialist fish-eater with a worldwide distribution.
 Order: Accipitriformes   Family: Accipitridae
 Accipitridae is a family of birds of prey, which includes hawks, eagles, kites, harriers, and Old World vultures. These birds have powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons, and keen eyesight. Twenty species have been recorded in Uruguay.
 Order: Strigiformes   Family: Tytonidae
 Barn owls are medium to large owls with large heads and heart-shaped faces. They have long strong legs with powerful talons. One species has been recorded in Uruguay.
 Order: Strigiformes   Family: Strigidae
 The typical owls are small to large solitary nocturnal birds of prey. They have large forward-facing eyes and ears, a hawk-like beak, and a conspicuous circle of feathers around each eye called a facial disk. Eight species have been recorded in Uruguay.
 Order: Trogoniformes   Family: Trogonidae
 The family Trogonidae includes trogons and quetzals. Found in tropical woodlands worldwide, they feed on insects and fruit, and their broad bills and weak legs reflect their diet and arboreal habits. Although their flight is fast, they are reluctant to fly any distance. Trogons have soft, often colorful, feathers with distinctive male and female plumage. One species has been recorded in Uruguay.
 Order: Coraciiformes   Family: Alcedinidae
 Kingfishers are medium-sized birds with large heads, long pointed bills, short legs, and stubby tails. Three species have been recorded in Uruguay.
 Order: Piciformes   Family: Ramphastidae
 Toucans are near passerine birds from the neotropics. They are brightly marked and have enormous, colorful bills which in some species amount to half their body length. One species has been recorded in Uruguay.
 Order: Piciformes   Family: Picidae
 Woodpeckers are small to medium-sized birds with chisel-like beaks, short legs, stiff tails, and long tongues used for capturing insects. Some species have feet with two toes pointing forward and two backward, while several species have only three toes. Many woodpeckers have the habit of tapping noisily on tree trunks with their beaks. Ten species have been recorded in Uruguay.
 Order: Cariamiformes   Family: Cariamidae
 The seriemas are terrestrial birds which run rather than fly (though they are able to fly for short distances). They have long legs, necks, and tails, but only short wings, reflecting their way of life. They are brownish birds with short bills and erectile crests, found on fairly-dry open grasslands. One species has been recorded in Uruguay.
 Order: Falconiformes   Family: Falconidae
 Falconidae is a family of diurnal birds of prey. They differ from hawks, eagles, and kites in that they kill with their beaks instead of their talons. Seven species have been recorded in Uruguay.
 Order: Psittaciformes   Family: Psittacidae
 Parrots are small to large birds with a characteristic curved beak. Their upper mandibles have slight mobility in the joint with the skull and they have a generally erect stance. All parrots are zygodactyl, having the four toes on each foot placed two at the front and two to the back. Eight species have been recorded in Uruguay.
 Order: Passeriformes   Family: Thamnophilidae
 The antbirds are a large family of small passerine birds of subtropical and tropical Central and South America. They are forest birds which tend to feed on insects at or near the ground. A sizable minority of them specialize in following columns of army ants to eat small invertebrates that leave their hiding places to flee from the ants. Many species lack bright color; brown, black, and white are the dominant tones. Four species have been recorded in Uruguay.
 Order: Passeriformes   Family: Conopophagidae
 The gnateaters are round, short-tailed, and long-legged birds which are closely related to the antbirds. One species has been recorded in Uruguay.
 Order: Passeriformes   Family: Furnariidae
 Ovenbirds comprise a large family of small sub-oscine passerine bird species found in Central and South America. They are a diverse group of insectivores which gets its name from the elaborate "oven-like" clay nests built by some species, although others build stick nests or nest in tunnels or clefts in rock. The woodcreepers are brownish birds which maintain an upright vertical posture, supported by their stiff tail vanes. They feed mainly on insects taken from tree trunks. Thirty-five species have been recorded in Uruguay. Three species are migratory and reach Uruguayan territory in winter.
 Order: Passeriformes   Family: Cotingidae
 The cotingas are birds of forests or forest edges in tropical South America. Comparatively little is known about this diverse group, although all have broad bills with hooked tips, rounded wings and strong legs. The males of many of the species are brightly colored, or decorated with plumes or wattles. Two species have been recorded in Uruguay.
 Order: Passeriformes   Family: Tityridae
 Tityridae are suboscine passerine birds found in forest and woodland in the Neotropics. The species in this family were formerly spread over the families Tyrannidae, Pipridae, and Cotingidae. They are small to medium-sized birds. They do not have the sophisticated vocal capabilities of the songbirds. Most, but not all, have plain coloring. Four species have been recorded in Uruguay.
 Order: Passeriformes   Family: Tyrannidae
 Tyrant flycatchers are passerine birds which occur throughout North and South America. They superficially resemble the Old World flycatchers, but are more robust and have stronger bills. They do not have the sophisticated vocal capabilities of the songbirds. Most, but not all, have plain coloring. As the name implies, most are insectivorous. Sixty-four species have been recorded in Uruguay.
 Order: Passeriformes   Family: Vireonidae
 The vireos are a group of small to medium-sized passerine birds. They are typically greenish in color and resemble wood warblers apart from their heavier bills. Two species have been recorded in Uruguay.
 Order: Passeriformes   Family: Corvidae
 The family Corvidae includes crows, ravens, jays, choughs, magpies, treepies, nutcrackers, and ground jays. Corvids are above average in size among the Passeriformes, and some of the larger species show high levels of intelligence. Three species have been recorded in Uruguay.
 Order: Passeriformes   Family: Hirundinidae
 The family Hirundinidae is adapted to aerial feeding. They have a slender streamlined body, long pointed wings, and a short bill with a wide gape. The feet are adapted to perching rather than walking, and the front toes are partially joined at the base. Eleven species have been recorded in Uruguay.
 Order: Passeriformes   Family: Troglodytidae
 The wrens are mainly small and inconspicuous except for their loud songs. These birds have short wings and thin down-turned bills. Several species often hold their tails upright. All are insectivorous. Two species have been recorded in Uruguay.
 Order: Passeriformes   Family: Polioptilidae
 These dainty birds resemble Old World warblers in their build and habits, moving restlessly through the foliage seeking insects. The gnatcatchers and gnatwrens are mainly soft bluish gray in color and have the typical insectivore's long sharp bill. They are birds of fairly open woodland or scrub which nest in bushes or trees. One species has been recorded in Uruguay.
 Order: Passeriformes   Family: Turdidae
 The thrushes are a group of passerine birds that occur mainly in the Old World. They are plump, soft plumaged, small to medium-sized insectivores or sometimes omnivores, often feeding on the ground. Many have attractive songs. Seven species have been recorded in Uruguay.
 Order: Passeriformes   Family: Mimidae
 The mimids are a family of passerine birds that includes thrashers, mockingbirds, tremblers, and the New World catbirds. These birds are notable for their vocalizations, especially their ability to mimic a wide variety of birds and other sounds heard outdoors. Their coloring tends towards dull-grays and browns. Two species have been recorded in Uruguay.
 Order: Passeriformes   Family: Sturnidae
 Starlings are small to medium-sized passerine birds. Their flight is strong and direct and they are very gregarious. Their preferred habitat is fairly open country. They eat insects and fruit. Plumage is typically dark with a metallic sheen. One species has been recorded in Uruguay.
 Order: Passeriformes   Family: Estrildidae
 The estrildid finches are small passerine birds of the Old World tropics and Australasia. They are gregarious and often colonial seed eaters with short thick but pointed bills. They are all similar in structure and habits, but have a wide variation in plumage colors and patterns. One species has been recorded in Uruguay.
 Order: Passeriformes   Family: Passeridae
 Sparrows are small passerine birds. sparrows tend to be small, plump, brown or gray birds with short tails and short powerful beaks. Sparrows are seed eaters, but they also consume small insects. One species has been recorded in Uruguay.
 Order: Passeriformes   Family: Motacillidae
 Motacillidae is a family of small passerine birds with medium to long tails. They include the wagtails, longclaws, and pipits. They are slender ground-feeding insectivores of open country. Six species have been recorded in Uruguay.
 Order: Passeriformes   Family: Fringillidae
 Finches are seed-eating passerine birds that are small to moderately large and have a strong beak, usually conical and in some species very large. All have twelve tail feathers and nine primaries. These birds have a bouncing flight with alternating bouts of flapping and gliding on closed wings, and most sing well. Six species have been recorded in Uruguay.
 Order: Passeriformes   Family: Passerellidae
 Most of the species are known as sparrows, but these birds are not closely related to the Old World sparrows which are in the family Passeridae. Many of these have distinctive head patterns. Two species have been recorded in Uruguay.
 Order: Passeriformes   Family: Icteridae
 The icterids are a group of small to medium-sized, often colorful, passerine birds restricted to the New World and include the grackles, New World blackbirds, and New World orioles. Most species have black as the predominant plumage color, often enlivened by yellow, orange, or red. Eighteen species have been recorded in Uruguay.
 Order: Passeriformes   Family: Parulidae
 The wood-warblers are a group of small, often colorful, passerine birds restricted to the New World. Most are arboreal, but some are terrestrial. Most members of this family are insectivores. Five species have been recorded in Uruguay.
 Order: Passeriformes   Family: Cardinalidae
 The cardinals are a family of robust, seed-eating birds with strong bills. They are typically associated with open woodland. The sexes usually have distinct plumages. Three species have been recorded in Uruguay.
 Order: Passeriformes   Family: Thraupidae
 The tanagers are a large group of small to medium-sized passerine birds restricted to the New World, mainly in the tropics. Many species are brightly colored. As a family they are omnivorous, but individual species specialize in eating fruits, seeds, insects, or other types of food. Most have short, rounded wings. Forty species have been recorded in Uruguay.