The South American Classification Committee (SACC) of the American Ornithological Society lists 489 species of birds that have been confirmed on the islands of Trinidad and Tobago as of November 2023. Of them, two are endemic, seven have been introduced by humans, 131 are rare or vagrants, 11 have been extirpated, and the status of one is not known.^[1][2] The origin of one species (vagrant or introduced) is uncertain.^[3] As of November 2023 the Trinidad & Tobago Bird Status & Distribution Committee (BSDC) did not recognize three of them and had added six, all of them vagrants.^[4][5]

There are few places in the world where so many bird species can be seen in such a small area, many of them unique, very rare, or of particular interest. They range from the many species of hummingbird to the cave-dwelling oilbird (which uses echo-location to fly in the dark) and the scarlet ibis.

The islands are within a few miles of Venezuela, and the species are therefore typical of tropical South America. However, the number of species is relatively low compared to the mainland, as would be expected on small islands. The resident breeding birds are augmented in the northern winter by migrants from North America, although the variety of migrant passerines is very limited compared to Central America.^{[citation needed]}

Unless noted otherwise, the list of species is that of the SACC with distribution notes by the BSDC.^[1][4][5] The list's taxonomic treatment (sequence of orders, families, and species) and nomenclature (common and scientific names) are also those of the SACC.^[6]

Species in the list are common on both main islands except as indicated otherwise. Many are also present on other, small, islands which are usually not named in the list. Tobago has only about half the number of bird species of Trinidad, but several species and subspecies have occurred only on the smaller island. Some of the smaller islands off Tobago, such as Little Tobago, have important seabird breeding colonies.^[1][4][5]

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.

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.

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.

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.

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, uniquely, are used upside-down.

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.

Order: Columbiformes   Family: Columbidae

Pigeons and doves are stout-bodied birds with short necks and short slender bills with a fleshy cere.

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.

Order: Steatornithiformes   Family: Steatornithidae

The oilbird is a slim, long-winged bird related to the nightjars. It is nocturnal and a specialist feeder on the fruit of the oil palm.

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.

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.

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.

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.

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.

Order: Gruiformes   Family: Heliornithidae

Heliornithidae is a small family of tropical birds with webbed lobes on their feet similar to those of grebes and coots.

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.

Order: Charadriiformes   Family: Haematopodidae

The oystercatchers are large and noisy plover-like birds, with strong bills used for smashing or prising open molluscs.

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.

Order: Charadriiformes   Family: Burhinidae

The thick-knees are a group of waders found worldwide within the tropical zone, with some species also breeding in temperate Europe and Australia. They are medium to large waders with strong black or yellow-black bills, large yellow eyes, and cryptic plumage. Despite being classed as waders, most species have a preference for arid or semi-arid habitats.

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.

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.

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.

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.

Order: Charadriiformes   Family: Laridae

Laridae is a family of medium to large seabirds and includes gulls, kittiwakes, terns, and skimmers. They are typically gray or white, often with black markings on the head or wings. They have stout, 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 known to live in excess of 30 years.

Order: Phaethontiformes   Family: Phaethontidae

Tropicbirds are slender white birds of tropical oceans with exceptionally long central tail feathers. Their heads and long wings have black markings.

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.

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.

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.

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.

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.

Order: Suliformes   Family: Sulidae

The sulids comprise the gannets and boobies. Both groups are medium to large coastal seabirds that plunge-dive for fish.

Order: Suliformes   Family: Anhingidae

Anhingas are often called "snake-birds" because they have long thin necks, 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.

Order: Suliformes   Family: Phalacrocoracidae

Phalacrocoracidae is a family of medium to large coastal, fish-eating seabirds that includes cormorants and shags. Plumage coloration varies; the majority of species have mainly dark plumage, but some are pied black and white, and a few are more colorful.

Order: Pelecaniformes   Family: Pelecanidae

Pelicans are large water birds with a distinctive pouch under their beak. As with other members of the order Pelecaniformes, they have webbed feet with four toes.

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.

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.

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.

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.

Order: Strigiformes   Family: Tytonidae

Barn owls are medium to large owls with large heads and characteristic heart-shaped faces. They have long strong legs with powerful talons.

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.

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.

Order: Coraciiformes   Family: Momotidae

The motmots have colorful plumage and long, graduated tails which they display by waggling back and forth. In most of the species, the barbs near the ends of the two longest (central) tail feathers are weak and fall off, leaving a length of bare shaft and creating a racket-shaped tail.

Order: Coraciiformes   Family: Alcedinidae

Kingfishers are medium-sized birds with large heads, long pointed bills, short legs, and stubby tails.

Order: Galbuliformes   Family: Galbulidae

The jacamars are near passerine birds from tropical South America, with a range that extends up to Mexico. They feed on insects caught on the wing, and are glossy, elegant birds with long bills and tails. In appearance and behavior they resemble the Old World bee-eaters, although they are more closely related to woodpeckers.

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.

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.

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.

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.

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 being the dominant tones.

Order: Passeriformes   Family: Grallariidae

Antpittas resemble the true pittas with strong, longish legs, very short tails, and stout bills.

Order: Passeriformes   Family: Formicariidae

Antthrushes resemble small rails with strong, longish legs, very short tails, and stout bills.

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.

Order: Passeriformes   Family: Pipridae

The manakins are a family of subtropical and tropical mainland Central and South America, and Trinidad and Tobago. They are compact forest birds, the males typically being brightly colored, although the females of most species are duller and usually green-plumaged. Manakins feed on small fruits, berries and insects.

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.

Order: Passeriformes   Family: Tityridae

Tityridae are suboscine passerine birds found in forest and woodland in the Neotropics. 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.

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.

Order: Passeriformes   Family: Vireonidae

The vireos are a group of small to medium-sized passerine birds. They are typically greenish in color and resemble New World warblers apart from their heavier bills.

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.

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.

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.

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.

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.

Order: Passeriformes   Family: Ploceidae

The weavers are small passerine birds related to the finches. They are seed-eating birds with rounded conical bills. The males of many species are brightly colored, usually in red or yellow and black, some species show variation in color only in the breeding season.

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 wide variation in plumage colors and patterns.

Order: Passeriformes   Family: Passeridae

Sparrows are small passerine birds. In general, 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.

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.

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.

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.

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.

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.

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.