Although Costa Rica is a small country, it is in the bird-rich neotropical region and has a huge number of species for its area. The official bird list published by the Costa Rican Rare Birds and Records Committee of the Asociación Ornitológica de Costa Rica (AOCR) contained 948 species as of July 2023.[1]
Of those species, seven are endemic (three of which are found only on Cocos Island), 90 are rare or accidental, and four have been introduced by humans. Another 73 are near-endemic with ranges that include only Costa Rica and Panama. Twenty-seven species, including five of the seven endemics, are globally vulnerable or endangered.[2] Over an area of 51,100 km2, an area smaller than West Virginia, this is the greatest density of bird species of any continental American country. About 600 species are resident, with most of the other regular visitors being winter migrants from North America.
Costa Rica's geological formation played a large role in the diversification of avian species. North America and South America were initially separate continents, but millions of years of earthquakes and volcanic eruptions eventually fused the two continents together. When this happened, species from the north and south poured into the land bridge that became Central America. Birds like the hummingbird came from the south, while birds like the jay came from the north.[3]
Part of the diversity stems from the wide array of habitats, which include mangrove swamps along the Pacific coast, the wet Caribbean coastal plain in the northeast, dry northern Pacific lowlands, and multiple mountain chains that form the spine of the country and rise as high as 3,500 m. These mountain chains, the largest of which is the Cordillera de Talamanca, form a geographical barrier that has enabled closely related but different species to develop on either side of the chain. A good example of this speciation is the white-collared manakin of the Caribbean side, which is now distinct from the orange-collared manakin of the Pacific slope.
In the past, higher sea levels left the mountains as highlands, and isolation again led to distinct species developing, with over thirty now endemic to the mountains, especially the Talamanca range which extends from southern Costa Rica into Panama.
This list is presented in the taxonomic sequence of the Check-list of North and Middle American Birds, 7th edition through the 63rd Supplement, published by the American Ornithological Society (AOS).[4] Common and scientific names are also those of the Check-list, except that the common names of families are from the Clements taxonomy because the AOS list does not include them.
Unless otherwise noted, all species on the list are considered to occur regularly in Costa Rica as permanent residents, summer or winter visitors, or migrants. The following tags have been used to highlight certain categories of occurrence:
(A) Accidental - a species that rarely or accidentally occurs in Costa Rica
(R?) Residence uncertain - a species which might be resident
(E) Endemic - a species endemic to Costa Rica
(E-R) Regional endemic - a species found only in Costa Rica and Panama
(I) Introduced - a species introduced to Costa Rica as a consequence, direct or indirect, of human actions
The tinamous are one of the most ancient groups of birds. 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) which includes the rheas, emu, and kiwis.
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.
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.
The New World quail are small, plump terrestrial birds only distantly related to the quails of the Old World, but named for their similar appearance and habits.
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.
The family Cuculidae includes cuckoos, roadrunners, and anis. These birds are of variable size with slender bodies, long tails, and strong legs. The Old World cuckoos are brood parasites.
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.
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.
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.
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.
The thick-knees are a group of largely tropical waders in the family Burhinidae. They are 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.
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.
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.
The jacanas are a family of waders which are 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.
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.
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.
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 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. 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.
The sunbittern is a bittern-like bird of tropical regions of the Americas and the sole member of the family Eurypygidae (sometimes spelled Eurypigidae) and genus Eurypyga.
Tropicbirds are slender white birds of tropical oceans which have exceptionally long central tail feathers. Their heads and long wings have black markings.
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.
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 three species were included with the other storm-petrels in 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.
The procellariids are the main group of medium-sized "true petrels", characterized by united nostrils with medium septum and a long outer functional primary.
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.
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.
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 anhingas 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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
The puffbirds are related to the jacamars and have the same range, but lack the iridescent colors of that family. They are mainly brown, rufous, or gray, with large heads and flattened bills with hooked tips. The loose abundant plumage and short tails makes them look stout and puffy, giving rise to the English common name of the family.
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 puffbirds.
The barbets are plump birds, with short necks and large heads. They get their name from the bristles which fringe their heavy bills. Most species are brightly colored.
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.
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.
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.
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.
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.
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.
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.
The members of this small family are found across northern South America and into Central America. They are forest birds, usually seen on the ground or in the low understory.
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, with brown, black, and white being the dominant tones.
The tapaculos are small suboscine passeriform birds with numerous species in South and Central America. They are terrestrial species that fly only poorly on their short wings. They have strong legs, well-suited to their habitat of grassland or forest undergrowth. The tail is cocked and pointed towards the head.
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.
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.
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.
The waxwings are a group of birds with soft silky plumage and unique red tips to some of the wing feathers. In the Bohemian and cedar waxwings, these tips look like sealing wax and give the group its name. These are arboreal birds of northern forests. They live on insects in summer and berries in winter.
The silky-flycatchers are a small family of passerine birds which occur mainly in Central America, although the range of one species extends to central California. They are related to waxwings and like that group have soft silky plumage, usually gray or pale yellow. They have small crests.
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.
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.
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.
Dippers are a group of perching birds whose habitat includes aquatic environments in the Americas, Europe, and Asia. They are named for their bobbing or dipping movements.
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.
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.
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.
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.
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.
Until 2017, these species were considered part of the family Emberizidae. 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.
Despite its name, this species is neither a wren nor a thrush, and is not closely related to either family. It was moved from the New World warblers (Parulidae) and placed in its own family in 2017.
This species was historically placed in the New World warblers but nonetheless most authorities were unsure if it belonged there. It was placed in its own family in 2017.
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.
The New World 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.
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.
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.
^Chesser, R. T., S. M. Billerman, K. J. Burns, C. Cicero, J. L. Dunn, B. E. Hernández-Baños, R. A. Jiménez, A. W. Kratter, N. A. Mason, P. C. Rasmussen, J. V. Remsen, Jr., D. F. Stotz, and K. Winker. 2022. Check-list of North American Birds (online). American Ornithological Society. (July 29, 2022). "Check-list of North and Middle American Birds". American Ornithological Society. Retrieved July 7, 2022.{{cite web}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
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