This is a list of the bird species recorded in the Cook Islands. The avifauna of the

Cook Islands ) , image_map = Cook Islands on the globe (small islands magnified) (Polynesia centered).svg , capital = Avarua , coordinates = , largest_city = Avarua , official_languages = , lan ...

include a total of 88 species, of which 7 are

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

and 3 have been introduced by humans. This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of ''

The Clements Checklist of Birds of the World ''The Clements Checklist of Birds of the World'' is a book by Jim Clements which presents a list of the bird species of the world. The most recent printed version is the sixth edition (2007), but has been updated yearly, the last version in 202 ...

'', 2022 edition. The family accounts at the beginning of each heading reflect this taxonomy, as do the species counts found in each family account. Introduced and accidental species are included in the total counts for the Cook Islands. The following tags have been used to highlight several categories. Not all species fall into one of these categories. Those that do not are commonly occurring native species. *(A) Accidental - a species that rarely or accidentally occurs in the Cook Islands *(E)

Endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

- a species endemic to the Cook Islands *(Ex) Extinct - a species extinct to the Cook Islands *(I) Introduced - a species introduced to the Cook Islands as a consequence, direct or indirect, of human actions

Ducks, geese, and waterfowl

Order: AnseriformesFamily:

Anatidae The Anatidae are the biological family of water birds that includes ducks, geese, and swans. The family has a cosmopolitan distribution, occurring on all the world's continents except Antarctica. These birds are adapted for swimming, floating ...

Anatidae includes the

duck Duck is the common name for numerous species of waterfowl in the family Anatidae. Ducks are generally smaller and shorter-necked than swans and geese, which are members of the same family. Divided among several subfamilies, they are a form ...

s and most duck-like waterfowl, such as

geese A goose ( : geese) is a bird of any of several waterfowl species in the family Anatidae. This group comprises the genera '' Anser'' (the grey geese and white geese) and ''Branta'' (the black geese). Some other birds, mostly related to the she ...

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. *

Pacific black duck The Pacific black duck (''Anas superciliosa''), commonly known as the PBD, is a dabbling duck found in much of Indonesia, New Guinea, Australia, New Zealand, and many islands in the southwestern Pacific, reaching to the Caroline Islands in the no ...

, ''Anas superciliosa'' * Eastern spot-billed duck, ''Anas zonorhyncha'' * Mallard, ''Anas platyrhynchos'' (A) *

Northern pintail The pintail or northern pintail (''Anas acuta'') is a duck species with wide geographic distribution that breeds in the northern areas of Europe and across the Palearctic and North America. It is migratory and winters south of its breeding ...

, ''Anas acuta'' (A) * Aitutaki whistling duck, ''Dendrocygna'' sp. (Ex)

Pheasants, grouse, and allies

Order:

Galliformes Galliformes is an order of heavy-bodied ground-feeding birds that includes turkeys, chickens, quail, and other landfowl. Gallinaceous birds, as they are called, are important in their ecosystems as seed dispersers and predators, and are ofte ...

Family: Phasianidae The Phasianidae are a family of terrestrial birds which consists of

quail Quail is a collective name for several genera of mid-sized birds generally placed in the order Galliformes. The collective noun for a group of quail is a flock, covey, or bevy. Old World quail are placed in the family Phasianidae, and New ...

partridge A partridge is a medium-sized galliform bird in any of several genera, with a wide native distribution throughout parts of Europe, Asia and Africa. Several species have been introduced to the Americas. They are sometimes grouped in the Perd ...

snowcock The snowcocks or snowfowl are a group of bird species in the genus ''Tetraogallus'' of the pheasant family, Phasianidae. They are ground-nesting birds that breed in the mountain ranges of southern Eurasia from the Caucasus to the Himalayas and we ...

francolin Francolins are birds in the tribe Gallini that traditionally have been placed in the genus ''Francolinus'', but now commonly are divided into multiple genera. As previously defined, they were paraphyletic as the genus '' Pternistis'', which wa ...

spurfowl Spurfowl are two genera of birds: * ''Galloperdix'', from India and Sri Lanka * ''Pternistis ''Pternistis'' is a genus of galliform birds formerly classified in the spurfowl group of the Perdicinae, partridge subfamily of the Phasianidae, phea ...

tragopan ''Tragopan'' is a bird genus in the pheasant family Phasianidae. Member of the genus are commonly called "horned pheasants" because males have two brightly colored, fleshy horns on their head that can be erected during courtship displays. The ha ...

monal A monal is a bird of genus ''Lophophorus'' of the pheasant family, Phasianidae. Description The males all have colorful, iridescent plumage. Their physique is rather plump. Their diet consists of plants such as roots and bulbs and insects. D ...

pheasant Pheasants ( ) are birds of several genera within the family Phasianidae in the order Galliformes. Although they can be found all over the world in introduced (and captive) populations, the pheasant genera native range is restricted to Eurasia ...

peafowl Peafowl is a common name for three bird species in the genera '' Pavo'' and '' Afropavo'' within the tribe Pavonini of the family Phasianidae, the pheasants and their allies. Male peafowl are referred to as peacocks, and female peafowl are ref ...

grouse Grouse are a group of birds from the order Galliformes, in the family Phasianidae. Grouse are presently assigned to the tribe Tetraonini (formerly the subfamily Tetraoninae and the family Tetraonidae), a classification supported by mitochondria ...

ptarmigan ''Lagopus'' is a small genus of birds in the grouse subfamily commonly known as ptarmigans (). The genus contains three living species with numerous described subspecies, all living in tundra or cold upland areas. Taxonomy and etymology The ge ...

, and

jungle fowl Junglefowl are the only four living species of bird from the genus ''Gallus'' in the bird order Galliformes, and occur in parts of South and Southeast Asia. They diverged from their common ancestor about 4–6 million years ago. Although origin ...

s. In general, they are plump (although they vary in size) and have broad, relatively short wings. *

Red junglefowl The red junglefowl (''Gallus gallus'') is a tropical bird in the family Phasianidae. It ranges across much of Southeast Asia and parts of South Asia. It was formerly known as the Bankiva or Bankiva Fowl. It is the species that gave rise to the ...

, ''Gallus gallus'' (I)

Pigeons and doves

Order:

Columbiformes Columbidae () is a bird family consisting of doves and pigeons. It is the only family in the order Columbiformes. These are stout-bodied birds with short necks and short slender bills that in some species feature fleshy ceres. They primarily ...

Family:

Columbidae Columbidae () is a bird family consisting of doves and pigeons. It is the only family in the order Columbiformes. These are stout-bodied birds with short necks and short slender bills that in some species feature fleshy ceres. They primarily ...

Pigeon Columbidae () is a bird family consisting of doves and pigeons. It is the only family in the order Columbiformes. These are stout-bodied birds with short necks and short slender bills that in some species feature fleshy ceres. They primarily ...

s and

dove Columbidae () is a bird family consisting of doves and pigeons. It is the only family in the order Columbiformes. These are stout-bodied birds with short necks and short slender bills that in some species feature fleshy ceres. They primarily ...

s are stout-bodied birds with short necks and short slender bills with a fleshy

cere The beak, bill, or rostrum is an external anatomical structure found mostly in birds, but also in turtles, non-avian dinosaurs and a few mammals. A beak is used for eating, preening, manipulating objects, killing prey, fighting, probing for food ...

. *

Rock pigeon The rock dove, rock pigeon, or common pigeon ( also ; ''Columba livia'') is a member of the bird family Columbidae (doves and pigeons). In common usage, it is often simply referred to as the "pigeon". The domestic pigeon (''Columba livia domes ...

, ''Columba livia'' * Cook Islands fruit-dove, ''Ptilinopus rarotongensis'' (E) *

Pacific imperial-pigeon The Pacific imperial pigeon (''Ducula pacifica'') is a widespread species of pigeon in the family Columbidae. It is found in American Samoa, the Cook Islands, the smaller islands of eastern Fiji, Kiribati, Niue, the smaller satellite islands of ...

, ''Ducula pacifica'' *

Great ground dove The great ground dove (''Pampusana nui'') is an extinct species of bird in the family Columbidae. It was found in Mangaia in the southern Cook Islands, and in French Polynesia where subfossil bones between 1000 and 2000 years old have been fou ...

, ''Pampusana nui'' (Ex) *'' Ducula cf. galeata'' (Ex)

Cuckoos

Order:

Cuculiformes Cuckoos are birds in the Cuculidae family, the sole taxon in the order Cuculiformes . The cuckoo family includes the common or European cuckoo, roadrunners, koels, malkohas, couas, coucals and anis. The coucals and anis are sometimes separa ...

Family:

Cuculidae Cuckoos are birds in the Cuculidae family, the sole taxon in the order Cuculiformes . The cuckoo family includes the common or European cuckoo, roadrunners, koels, malkohas, couas, coucals and anis. The coucals and anis are sometimes separa ...

The family Cuculidae includes

cuckoo Cuckoos are birds in the Cuculidae family, the sole taxon in the order Cuculiformes . The cuckoo family includes the common or European cuckoo, roadrunners, koels, malkohas, couas, coucals and anis. The coucals and anis are sometimes separ ...

roadrunner The roadrunners (genus ''Geococcyx''), also known as chaparral birds or chaparral cocks, are two species of fast-running ground cuckoos with long tails and crests. They are found in the southwestern and south-central United States and Mexico, us ...

s and anis. These birds are of variable size with slender bodies, long tails and strong legs. The Old World cuckoos are brood parasites. * Long-tailed koel, ''Urodynamis taitensis''

Swifts

Order:

Caprimulgiformes Nightjars are medium-sized nocturnal or crepuscular birds in the family Caprimulgidae and order Caprimulgiformes, characterised by long wings, short legs, and very short bills. They are sometimes called goatsuckers, due to the ancient folk tal ...

Family:

Apodidae The swifts are a family, Apodidae, of highly aerial birds. They are superficially similar to swallows, but are not closely related to any passerine species. Swifts are placed in the order Apodiformes with hummingbirds. The treeswifts are closely ...

Swift Swift or SWIFT most commonly refers to: * SWIFT, an international organization facilitating transactions between banks ** SWIFT code * Swift (programming language) * Swift (bird), a family of birds It may also refer to: Organizations * SWIFT, ...

s 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. * Atiu swiftlet, ''Aerodramus sawtelli'' (E) * Mangaia swiftlet, ''Aerodramus manuoi'' (Ex)

Rails, gallinules, and coots

Order:

Gruiformes The Gruiformes are an order containing a considerable number of living and extinct bird families, with a widespread geographical diversity. Gruiform means "crane-like". Traditionally, a number of wading and terrestrial bird families that did ...

Family:

Rallidae The rails, or Rallidae, are a large cosmopolitan family of small- to medium-sized, ground-living birds. The family exhibits considerable diversity and includes the crakes, coots, and gallinules. Many species are associated with wetlands, althou ...

Rallidae is a large family of small to medium-sized birds which includes the

rails Rail or rails may refer to: Rail transport *Rail transport and related matters *Rail (rail transport) or railway lines, the running surface of a railway Arts and media Film * ''Rails'' (film), a 1929 Italian film by Mario Camerini * ''Rail'' ( ...

, crakes,

coot Coots are medium-sized water birds that are members of the rail family, Rallidae. They constitute the genus ''Fulica'', the name being the Latin term for "coot". Coots have predominantly black plumage, and—unlike many rails—they are usually ...

s and

gallinule Moorhens—sometimes called marsh hens—are medium-sized water birds that are members of the rail family (Rallidae). Most species are placed in the genus ''Gallinula'', Latin for "little hen". They are close relatives of coots. They are of ...

s. 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. * Mangaia rail, ''Gallirallus ripleyi'' (Ex) *

Spotless crake The spotless crake (''Zapornia tabuensis'') is a species of bird in the rail family, Rallidae. It is widely distributed species occurring from the Philippines, New Guinea and Australia, across the southern Pacific Ocean to the Marquesas Islands a ...

, ''Zapornia tabuensis'' (A) * Mangaia crake, ''Porzana rua'' (Ex)

Plovers and lapwings

Order:

Charadriiformes Charadriiformes (, from ''Charadrius'', the type genus of family Charadriidae) is a diverse order of small to medium-large birds. It includes about 390 species and has members in all parts of the world. Most charadriiform birds live near water an ...

Family:

Charadriidae The bird family Charadriidae includes the plovers, dotterels, and lapwings, about 64 to 68 species in all. Taxonomy The family Charadriidae was introduced (as Charadriadæ) by the English zoologist William Elford Leach in a guide to the con ...

The family Charadriidae includes the

plover Plovers ( , ) are a widely distributed group of wading birds belonging to the subfamily Charadriinae. Description There are about 66 species in the subfamily, most of them called "plover" or "dotterel". The closely related lapwing subf ...

dotterel The Eurasian dotterel (''Charadrius morinellus''), also known in Europe as just dotterel, is a small wader in the plover family of birds. The dotterel is a brown and black streaked bird with a broad white eye-stripe and an orange-red chest ban ...

s and

lapwing Lapwings (subfamily Vanellinae) are any of various ground-nesting birds (family Charadriidae) akin to plovers and dotterels. They range from in length, and are noted for their slow, irregular wingbeats in flight and a shrill, wailing cry. A gro ...

s. 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. *

Black-bellied plover The grey plover or black-bellied plover (''Pluvialis squatarola'') is a large plover breeding in Arctic regions. It is a long-distance migrant, with a nearly worldwide coastal distribution when not breeding. Taxonomy The grey plover was forma ...

, ''Pluvialis squatarola'' * Pacific golden-plover, ''Pluvialis fulva'' * Masked lapwing, ''Vanellus miles'' (A)

Sandpipers and allies

Order:

Family:

Scolopacidae Sandpipers are a large family, Scolopacidae, of waders. They include many species called sandpipers, as well as those called by names such as curlew and snipe. The majority of these species eat small invertebrates picked out of the mud or soil. ...

Scolopacidae is a large diverse family of small to medium-sized shorebirds including the

sandpiper Sandpipers are a large family, Scolopacidae, of waders. They include many species called sandpipers, as well as those called by names such as curlew and snipe. The majority of these species eat small invertebrates picked out of the mud or soil ...

curlew The curlews () are a group of nine species of birds in the genus ''Numenius'', characterised by their long, slender, downcurved bills and mottled brown plumage. The English name is imitative of the Eurasian curlew's call, but may have been in ...

godwit The godwits are a group of large, long-billed, long-legged and strongly migratory waders of the bird genus ''Limosa''. Their long bills allow them to probe deeply in the sand for aquatic worms and molluscs. In their winter range, they floc ...

s, shanks, tattlers,

woodcock The woodcocks are a group of seven or eight very similar living species of wading birds in the genus ''Scolopax''. The genus name is Latin for a snipe or woodcock, and until around 1800 was used to refer to a variety of waders. The English name ...

snipe A snipe is any of about 26 wading bird species in three genera in the family Scolopacidae. They are characterized by a very long, slender bill, eyes placed high on the head, and cryptic/ camouflaging plumage. The ''Gallinago'' snipes have a ...

dowitcher The three dowitchers are medium-sized long-billed wading birds in the genus ''Limnodromus''. The English name "dowitchers" is from Iroquois, recorded in English by the 1830s. The OED's earliest example is from 1841, but full-text searching giv ...

s and

phalarope __NOTOC__ A phalarope is any of three living species of slender-necked shorebirds in the genus ''Phalaropus'' of the bird family Scolopacidae. Phalaropes are close relatives of the shanks and tattlers, the ''Actitis'' and Terek sandpipers, a ...

s. 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. *

Bristle-thighed curlew The bristle-thighed curlew (''Numenius tahitiensis'') is a medium-sized shorebird that breeds in Alaska and winters on tropical Pacific islands. It is known in Mangareva as ''kivi'' or ''kivikivi'' and in Rakahanga as ''kihi''; it is said to be ...

, ''Numenius tahitiensis'' * Whimbrel, ''Numenius phaeopus'' (A) *

Bar-tailed godwit The bar-tailed godwit (''Limosa lapponica'') is a large and strongly migratory wader in the family Scolopacidae, which feeds on bristle-worms and shellfish on coastal mudflats and estuaries. It has distinctive red breeding plumage, long legs, ...

, ''Limosa lapponica'' (A) *

Ruddy turnstone The ruddy turnstone (''Arenaria interpres'') is a small cosmopolitan wading bird, one of two species of turnstone in the genus ''Arenaria''. It is now classified in the sandpiper family Scolopacidae but was formerly sometimes placed in the plov ...

, ''Arenaria interpres'' *

Sanderling The sanderling (''Calidris alba'') is a small wading bird. The name derives from Old English ''sand-yrðling'', "sand-ploughman". The genus name is from Ancient Greek ''kalidris'' or ''skalidris'', a term used by Aristotle for some grey-colou ...

, ''Calidris alba'' *

Pectoral sandpiper The pectoral sandpiper (''Calidris melanotos'') is a small, migratory wader that breeds in North America and Asia, wintering in South America and Oceania. It eats small invertebrates. Its nest, a hole scraped in the ground and with a thick linin ...

, ''Calidris melanotos'' (A) *

Common sandpiper The common sandpiper (''Actitis hypoleucos'') is a small Palearctic wader. This bird and its American sister species, the spotted sandpiper (''A. macularia''), make up the genus ''Actitis''. They are parapatric and replace each other geographic ...

, ''Actitis hypoleucos'' (A) *

Spotted sandpiper The spotted sandpiper (''Actitis macularius'') is a small shorebird. Together with its sister species the common sandpiper (''A. hypoleucos''), it makes up the genus ''Actitis''. They replace each other geographically; stray birds may settle do ...

, ''Actitis macularius'' (A) * Gray-tailed tattler, ''Tringa brevipes'' *

Wandering tattler The wandering tattler (''Tringa incana''; formerly ''Heteroscelus incanus'': Pereira & Baker, 2005; Banks ''et al.'', 2006), is a medium-sized wading bird. It is similar in appearance to the closely related gray-tailed tattler, ''T. brevipes''. ...

, ''Tringa incana'' * Mangaia sandpiper, ''Prosobonia'' sp. (Ex)

Skuas and jaegers

Order:

Family: Stercorariidae The family Stercorariidae are, in general, medium to large birds, typically with grey 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. * Parasitic jaeger, ''Stercorarius parasiticus'' (A)

Gulls, terns, and skimmers

Order:

Family:

Laridae Laridae is a family of seabirds in the order Charadriiformes that includes the gulls, terns, skimmers and kittiwakes. It includes around 100 species arranged into 22 genera. They are an adaptable group of mostly aerial birds found worldwide. ...

Laridae is a family of medium to large seabirds, the

gull Gulls, or colloquially seagulls, are seabirds of the family Laridae in the suborder Lari. They are most closely related to the terns and skimmers and only distantly related to auks, and even more distantly to waders. Until the 21st century ...

tern Terns are seabirds in the family Laridae that have a worldwide distribution and are normally found near the sea, rivers, or wetlands. Terns are treated as a subgroup of the family Laridae which includes gulls and skimmers and consists of e ...

s, and skimmers. Gulls are typically grey 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 grey 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. *

Laughing gull The laughing gull (''Leucophaeus atricilla'') is a medium-sized gull of North and South America. Named for its laugh-like call, it is an opportunistic omnivore and scavenger. It breeds in large colonies mostly along the Atlantic coast of North Am ...

, ''Leucophaeus atricilla'' (A) *

Brown noddy The brown noddy or common noddy (''Anous stolidus'') is a seabird in the family Laridae. The largest of the noddies, it can be told from the closely related black noddy by its larger size and plumage, which is dark brown rather than black. The b ...

, ''Anous stolidus'' *

Black noddy The black noddy or white-capped noddy (''Anous minutus'') is a seabird from the family Laridae. It is a medium-sized species of tern with black plumage and a white cap. It closely resembles the lesser noddy (''Anous tenuirostris'') with which it ...

, ''Anous minutus'' (A) * Gray noddy, ''Anous albivitta'' * Blue-gray noddy, ''Anous ceruleus'' *

White tern The white tern or common white tern (''Gygis alba'') is a small seabird found across the tropical oceans of the world. It is sometimes known as the fairy tern, although this name is potentially confusing as it is also the common name of '' Sternu ...

, ''Gygis alba'' * Sooty tern, ''Onychoprion fuscatus'' * Gray-backed tern, ''Onychoprion lunatus'' *

Black-naped tern The black-naped tern (''Sterna sumatrana'') is an oceanic tern mostly found in tropical and subtropical areas of the Pacific and Indian Oceans. It is rarely found inland. Description The tern is about 30 cm long with a wing length of 21� ...

, ''Sterna sumatrana'' *

Common tern The common tern (''Sterna hirundo'') is a seabird in the family Laridae. This bird has a circumpolar distribution, its four subspecies breeding in temperate and subarctic regions of Europe, Asia and North America. It is strongly migrator ...

, ''Sterna hirundo'' * Great crested tern, ''Thalasseus bergii'' (A)

Tropicbirds

Order:

Phaethontiformes The Phaethontiformes are an order of birds. They contain one extant family, the tropicbirds (Phaethontidae), and one extinct family Prophaethontidae from the early Cenozoic. Several fossil genera have been described. The tropicbirds were tradit ...

Family:

Phaethontidae Tropicbirds are a family, Phaethontidae, of tropical pelagic seabirds. They are the sole living representatives of the order Phaethontiformes. For many years they were considered part of the Pelecaniformes, but genetics indicates they are most ...

Tropicbird Tropicbirds are a family, Phaethontidae, of tropical pelagic seabirds. They are the sole living representatives of the order Phaethontiformes. For many years they were considered part of the Pelecaniformes, but genetics indicates they are most cl ...

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

White-tailed tropicbird The white-tailed tropicbird (''Phaethon lepturus'') is a tropicbird. It is the smallest of three closely related seabirds of the tropical oceans and smallest member of the order Phaethontiformes. It is found in the tropical Atlantic, western P ...

, ''Phaethon lepturus'' * Red-tailed tropicbird, ''Phaethon rubricauda''

Albatrosses

Order:

Procellariiformes Procellariiformes is an order (biology), order of seabirds that comprises four family (biology), families: the albatrosses, the Procellariidae, petrels and shearwaters, and two families of storm petrels. Formerly called Tubinares and still call ...

Family:

Diomedeidae Albatrosses, of the biological family Diomedeidae, are large seabirds related to the procellariids, storm petrels, and diving petrels in the order Procellariiformes (the tubenoses). They range widely in the Southern Ocean and the North Pacif ...

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. *

Black-browed albatross The black-browed albatross (''Thalassarche melanophris''), also known as the black-browed mollymawk,Robertson, C. J. R. (2003) is a large seabird of the albatross family Diomedeidae; it is the most widespread and common member of its family. T ...

, ''Thalassarche melanophris'' (A) * Royal albatross, ''Diomedea epomophora'' *

Wandering albatross The wandering albatross, snowy albatross, white-winged albatross or goonie (''Diomedea exulans'') is a large seabird from the family Diomedeidae, which has a circumpolar range in the Southern Ocean. It was the last species of albatross to be desc ...

, ''Diomedea exulans'' (A)

Southern storm-petrels

Order:

Family:

Oceanitidae Austral storm petrels, or southern storm petrels, are seabirds in the family Oceanitidae, part of the order Procellariiformes. These smallest of seabirds feed on planktonic crustaceans and small fish picked from the surface, typically while hove ...

The southern storm-petrels are relatives of the

petrel Petrels are tube-nosed seabirds in the bird order Procellariiformes. Description The common name does not indicate relationship beyond that point, as "petrels" occur in three of the four families within that group (all except the albatross f ...

s and are the smallest seabirds. They feed on

plankton Plankton are the diverse collection of organisms found in water (or air) that are unable to propel themselves against a current (or wind). The individual organisms constituting plankton are called plankters. In the ocean, they provide a crucia ...

ic crustaceans and small fish picked from the surface, typically while hovering. The flight is fluttering and sometimes

bat Bats are mammals of the order Chiroptera.''cheir'', "hand" and πτερόν''pteron'', "wing". With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most ...

-like. *

Wilson's storm-petrel Wilson's storm petrel (''Oceanites oceanicus''), also known as Wilson's petrel, is a small seabird of the austral storm petrel family Oceanitidae. It is one of the most abundant bird species in the world and has a circumpolar distribution mainly ...

, ''Oceanites oceanicus'' (A) *

White-faced storm-petrel The white-faced storm petrel (''Pelagodroma marina''), also known as white-faced petrel is a small seabird of the austral storm petrel family Oceanitidae. It is the only member of the monotypic genus ''Pelagodroma''. Description The white-faced ...

, ''Pelagodroma marina'' (A) * White-bellied storm-petrel, ''Fregetta grallaria'' * Polynesian storm-petrel, ''Nesofregetta fuliginosa''

Northern storm-petrels

Order:

Family:

Hydrobatidae Northern storm petrels are seabirds in the genus ''Hydrobates'' in the family Hydrobatidae, part of the order Procellariiformes. The family was once lumped with the similar austral storm petrels in the combined storm petrels, but have been split ...

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. *

Leach's storm-petrel Leach's storm petrel or Leach's petrel (''Hydrobates leucorhous'') is a small seabird of the tubenose order. It is named after the British zoologist William Elford Leach. The scientific name is derived from Ancient Greek. ''Hydrobates'' is from ...

, ''Hydrobates leucorhous'' (A)

Shearwaters and petrels

Order:

Family:

Procellariidae The family Procellariidae is a group of seabirds that comprises the fulmarine petrels, the gadfly petrels, the diving petrels, the prions, and the shearwaters. This family is part of the bird order Procellariiformes (or tubenoses), which als ...

The procellariids are the main group of medium-sized "true petrels", characterised by united nostrils with medium septum and a long outer functional primary. * Southern giant-petrel, ''Macronectes giganteus'' (A) * Northern giant-petrel, ''Macronectes halli'' (A) * Cape petrel, ''Daption capense'' *

Kermadec petrel The Kermadec petrel (''Pterodroma neglecta'') is a species of gadfly petrel in the family Procellariidae. It is 38 cm long with a wingspan of 100 cm. It is polymorphic, with light, dark and intermediate morphs known. It eats squid, fis ...

, ''Pterodroma neglecta'' (A) *

Herald petrel The Herald petrel (''Pterodroma heraldica'') is a species of seabird and a member of the gadfly petrels. Its range includes the south Pacific Ocean and Indian Ocean. Description The bird is in size, with an wingspan. It was formerly considere ...

, ''Pterodroma heraldica'' *

Murphy's petrel Murphy's petrel (''Pterodroma ultima'') is a species of seabird and a member of the gadfly petrels. The bird is 15 inches in length, with a 35-inch wingspan and weigh about 13 ounces. It was described by Robert Cushman Murphy in 1949, which is th ...

, ''Pterodroma ultima'' *

Mottled petrel The mottled petrel (''Pterodroma inexpectata'') or kōrure is a species of seabird and a member of the gadfly petrels. It usually attains in length with a wingspan. This species is highly pelagic, rarely approaching land, except to nest and r ...

, ''Pterodroma inexpectata'' *

White-necked petrel The white-necked petrel (''Pterodroma cervicalis''), also known as the white-naped petrel, is a species of seabird in the family Procellariidae. During the non-breeding season it occurs throughout a large part of the Pacific, but it is only known ...

, ''Pterodroma cervicalis'' (A) *

Black-winged petrel The black-winged petrel (''Pterodroma nigripennis'') is a species of seabird in the family Procellariidae. It breeds on a number of oceanic islands in the tropical and subtropical East Pacific Ocean and spends the rest of the year at sea. Descr ...

, ''Pterodroma nigripennis'' * Cook's petrel, ''Pterodroma cookii'' (A) * Gould's petrel, ''Pterodroma leucoptera'' * Collared petrel, ''Pterodroma brevipes'' * Phoenix petrel, ''Pterodroma alba'' (A) *

Bulwer's petrel Bulwer's petrel (''Bulweria bulwerii'') is a small petrel in the family Procellariidae that is found in tropical and subtropical regions of the Atlantic, Indian and Pacific Oceans. It is named after the English naturalist James Bulwer. Taxonomy ...

, ''Bulweria bulwerii'' * Tahiti petrel, ''Pseudobulweria rostrata'' *

Wedge-tailed shearwater The wedge-tailed shearwater (''Ardenna pacifica'') is a medium-large shearwater in the seabird family Procellariidae. It is one of the shearwater species that is sometimes referred to as a muttonbird, like the sooty shearwater of New Zealand and ...

, ''Ardenna pacifica'' (A) * Buller's shearwater, ''Ardenna bulleri'' *

Sooty shearwater The sooty shearwater (''Ardenna grisea'') is a medium-large shearwater in the seabird family Procellariidae. In New Zealand, it is also known by its Māori name , and as muttonbird, like its relatives the wedge-tailed shearwater (''A. pacificus ...

, ''Ardenna griseus'' * Short-tailed shearwater, ''Ardenna tenuirostris'' *

Christmas shearwater The Christmas shearwater or ''aoū'' (''Puffinus nativitatis'') is a medium-sized shearwater of the tropical Central Pacific. It is a poorly known species due to its remote nesting habits, and it has not been extensively studied at sea either. ...

, ''Puffinus nativitatis'' *

Tropical shearwater The tropical shearwater (''Puffinus bailloni'') is a seabird in the family Procellariidae formerly considered conspecific with Audubon's shearwater (''Puffinus lherminieri''). Subspecies There are five listed subspecies of the tropical shearwa ...

, ''Puffinus bailloni''

Frigatebirds

Order:

Suliformes The order Suliformes (, dubbed "Phalacrocoraciformes" by ''Christidis & Boles 2008'') is an order recognised by the International Ornithologist's Union. In regard to the recent evidence that the traditional Pelecaniformes is polyphyletic, it has ...

Family:

Fregatidae Frigatebirds are a family of seabirds called Fregatidae which are found across all tropical and subtropical oceans. The five extant species are classified in a single genus, ''Fregata''. All have predominantly black plumage, long, deeply forked ...

Frigatebird Frigatebirds are a family of seabirds called Fregatidae which are found across all tropical and subtropical oceans. The five extant species are classified in a single genus, ''Fregata''. All have predominantly black plumage, long, deeply forked ...

s 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 coloured 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. *

Lesser frigatebird The lesser frigatebird (''Fregata ariel'') is a seabird of the frigatebird family Fregatidae. At around 75 cm (30 in) in length, it is the smallest species of frigatebird. It occurs over tropical and subtropical waters across the Indian ...

, ''Fregata ariel'' * Great frigatebird, ''Fregata minor''

Boobies and gannets

Order:

Family:

Sulidae The bird family Sulidae comprises the gannets and boobies. Collectively called sulids, they are medium-large coastal seabirds that plunge-dive for fish and similar prey. The 10 species in this family are often considered congeneric in older ...

The sulids comprise the

gannet Gannets are seabirds comprising the genus ''Morus'' in the family Sulidae, closely related to boobies. Gannets are large white birds with yellowish heads; black-tipped wings; and long bills. Northern gannets are the largest seabirds in the ...

s and

boobies A booby is a seabird in the genus ''Sula'', part of the family Sulidae. Boobies are closely related to the gannets (''Morus''), which were formerly included in ''Sula''. Systematics and evolution The genus ''Sula'' was introduced by the Fren ...

. Both groups are medium to large coastal seabirds that plunge-dive for fish. *

Masked booby The masked booby (''Sula dactylatra''), also called the masked gannet or the blue-faced booby, is a large seabird of the booby and gannet family, Sulidae. First described by the French naturalist René-Primevère Lesson in 1831, the masked boo ...

, ''Sula dactylatra'' * Brown booby, ''Sula leucogaster'' * Red-footed booby, ''Sula sula''

Herons, egrets, and bitterns

Order:

Pelecaniformes The Pelecaniformes are an order of medium-sized and large waterbirds found worldwide. As traditionally—but erroneously—defined, they encompass all birds that have feet with all four toes webbed. Hence, they were formerly also known by such n ...

Family:

Ardeidae The herons are long-legged, long-necked, freshwater and coastal birds in the family Ardeidae, with 72 recognised species, some of which are referred to as egrets or bitterns rather than herons. Members of the genera ''Botaurus'' and ''Ixobrychu ...

The family Ardeidae contains the

bittern Bitterns are birds belonging to the subfamily Botaurinae of the heron family Ardeidae. Bitterns tend to be shorter-necked and more secretive than other members of the family. They were called ''hæferblæte'' in Old English; the word "bittern ...

s, herons, and

egret Egrets ( ) are herons, generally long-legged wading birds, that have white or buff plumage, developing fine plumes (usually milky white) during the breeding season. Egrets are not a biologically distinct group from herons and have the same build ...

s. 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. *

Pacific reef-heron The Pacific reef heron (''Egretta sacra''), also known as the eastern reef heron or eastern reef egret, is a species of heron found throughout southern Asia and Oceania. It occurs in two colour morphs with either slaty grey or pure white pluma ...

, ''Egretta sacra'' *

Striated heron The striated heron (''Butorides striata'') also known as mangrove heron, little green heron or green-backed heron, is a small heron, about 44 cm tall. Striated herons are mostly sedentary and noted for some interesting behavioral traits. The ...

, ''Butorides striata'' (A)

Hawks, eagles, and kites

Order:

Accipitriformes The Accipitriformes (; from Latin ''accipiter''/''accipitri-'' "hawk", and New Latin ''-formes'' "having the form of") are an order of birds that includes most of the diurnal birds of prey, including hawks, eagles, vultures, and kites, but not f ...

Family:

Accipitridae The Accipitridae is one of the three families within the order Accipitriformes, and is a family of small to large birds with strongly hooked bills and variable morphology based on diet. They feed on a range of prey items from insects to medium-s ...

Accipitridae is a family of birds of prey, which includes hawks,

eagle Eagle is the common name for many large birds of prey of the family Accipitridae. Eagles belong to several groups of genera, some of which are closely related. Most of the 68 species of eagle are from Eurasia and Africa. Outside this area, j ...

kites A kite is a tethered heavier-than-air or lighter-than-air craft with wing surfaces that react against the air to create lift and drag forces. A kite consists of wings, tethers and anchors. Kites often have a bridle and tail to guide the face ...

, harriers and

Old World vulture Old World vultures are vultures that are found in the Old World, i.e. the continents of Europe, Asia and Africa, and which belong to the family Accipitridae, which also includes eagles, buzzards, kites, and hawks. Old World vultures are not cl ...

s. These birds have powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons and keen eyesight. * Eastern marsh-harrier, ''Circus spilonotus'' (A)

Kingfishers

Order:

Coraciiformes The Coraciiformes are a group of usually colourful birds including the kingfishers, the bee-eaters, the rollers, the motmots, and the todies. They generally have syndactyly, with three forward-pointing toes (and toes 3 & 4 fused at their base) ...

Family: Alcedinidae Kingfishers are medium-sized birds with large heads, long pointed bills, short legs and stubby tails. * Mewing kingfisher, ''Todirhamphus ruficollaris'' (E) * Chattering kingfisher, ''Todirhamphus tuta''

Old World parrots

Order: PsittaciformesFamily:

Psittaculidae Psittaculidae is a family containing Old World parrots. It consists of five subfamilies: Agapornithinae, Loriinae, Platycercinae, Psittacellinae and Psittaculinae. This family has been accepted into ''The Clements Checklist of Birds of the World' ...

Characteristic features of parrots include a strong curved bill, an upright stance, strong legs, and clawed

zygodactyl In biology, dactyly is the arrangement of digits (fingers and toes) on the hands, feet, or sometimes wings of a tetrapod animal. It comes from the Greek word δακτυλος (''dáktylos'') = "finger". Sometimes the ending "-dactylia" is use ...

feet. Many parrots are vividly coloured, and some are multi-coloured. In size they range from to in length. Old World parrots are found from Africa east across south and southeast Asia and Oceania to Australia and New Zealand. * Kuhl's lorikeet, ''Vini kuhlii'' (I) *

Blue lorikeet The blue lorikeet (''Vini peruviana'') is a small lorikeet from French Polynesia and the Cook Islands. It is also known as the Tahiti lorikeet, violet lorikeet, Tahitian lory, blue lory, nunbird, and the indigo lory. It was formerly found on 23 ...

, ''Vini peruviana''

Monarch flycatchers

Order:

Passeriformes A passerine () is any bird of the order Passeriformes (; from Latin 'sparrow' and '-shaped'), which includes more than half of all bird species. Sometimes known as perching birds, passerines are distinguished from other orders of birds by th ...

Family: Monarchidae The monarch flycatchers are small to medium-sized insectivorous passerines which hunt by flycatching. *

Rarotonga monarch The Rarotonga monarch (''Pomarea dimidiata''), also known as the Rarotonga flycatcher or ''kakerori'', is a species of bird in the monarch flycatcher family Monarchidae. It is endemic to the Cook Islands. Taxonomy and systematics The Rarotonga m ...

, ''Pomarea dimidiata'' (E)

Reed warblers and allies

Order:

Family:

Acrocephalidae The Acrocephalidae (the reed warblers, marsh- and tree-warblers, or acrocephalid warblers) are a family of oscine passerine birds, in the superfamily Sylvioidea. The species in this family are usually rather large "warblers". Most are rather p ...

The members of this family are usually rather large for "warblers". Most are rather plain olivaceous brown above with much yellow to beige below. They are usually found in open woodland, reedbeds, or tall grass. The family occurs mostly in southern to western Eurasia and surroundings, but it also ranges far into the Pacific, with some species in Africa. * Cook Islands reed warbler, ''Acrocephalus kerearako'' (E)

Starlings

Order:

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. * Rarotonga starling, ''Aplonis cinerascens'' (E) * Mysterious starling, ''Aplonis mavornata'' (Ex) * Mauke starling, ''Aplonis mavornata'' (Ex) * Common myna, ''Acridotheres tristis'' (I) *

Jungle myna The jungle myna (''Acridotheres fuscus'') is a myna, a member of the starling family. It is found patchily distributed across much of the mainland of the Indian Subcontinent but absent in the arid zones of India. It is easily recognized by the ...

, ''Acridotheres fuscus'' (A)

Waxbills and allies

Order:

Family:

Estrildidae Estrildidae, or estrildid finches, is a family of small seed-eating passerine birds of the Old World tropics and Australasia. They comprise species commonly known as munias, mannikins, firefinches, parrotfinches and waxbills. Despite the word "fi ...

The

estrildid finch Estrildidae, or estrildid finches, is a family of small seed-eating passerine birds of the Old World tropics and Australasia. They comprise species commonly known as munias, mannikins, firefinches, parrotfinches and waxbills. Despite the word "fi ...

es are small passerine birds of the Old World tropics and

Australasia Australasia is a region that comprises Australia, New Zealand and some neighbouring islands in the Pacific Ocean. The term is used in a number of different contexts, including geopolitically, physiogeographically, philologically, and ecologi ...

. 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 colours and patterns. * Chestnut-breasted munia, ''Lonchura castaneothorax''

References

* *{{cite book , title=Birds of the World: a Checklist , first= James F. , last = Clements , publisher = Cornell University Press , year = 2000 , isbn = 0-934797-16-1 , page = 880

Cook Islands ) , image_map = Cook Islands on the globe (small islands magnified) (Polynesia centered).svg , capital = Avarua , coordinates = , largest_city = Avarua , official_languages = , lan ...

' birds

Ducks, geese, and waterfowl

Pheasants, grouse, and allies

Pigeons and doves

Cuckoos

Swifts

Rails, gallinules, and coots

Plovers and lapwings

Sandpipers and allies

Skuas and jaegers

Gulls, terns, and skimmers

Tropicbirds

Albatrosses

Southern storm-petrels

Northern storm-petrels

Shearwaters and petrels

Frigatebirds

Boobies and gannets

Herons, egrets, and bitterns

Hawks, eagles, and kites

Kingfishers

Old World parrots

Monarch flycatchers

Reed warblers and allies

Starlings

Waxbills and allies

See also

References