There are 34 species of birds that have been recorded living in the wild in Nauru, one of which is

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 ...

to the island and two of which have been introduced by humans. One species, the zebra finch, is now

locally extinct Local extinction, also known as extirpation, refers to a species (or other taxon) of plant or animal that ceases to exist in a chosen geographic area of study, though it still exists elsewhere. Local extinctions are contrasted with global extinct ...

on Nauru. Out of the 25 species of birds that have been confirmed to occur natively on Nauru, 18 are non-breeding visitors. Only two land birds, the Micronesian imperial-pigeon and the endemic

Nauru reed warbler The Nauru reed warbler ( na, itsirir) (''Acrocephalus rehsei'') is a passerine bird endemism, endemic to the island of Nauru in the Pacific Ocean. It is one of only two native breeding land-birds on Nauru and it is the only passerine found on th ...

, breed on Nauru. Three species occurring on Nauru are listed as being

near-threatened A near-threatened species is a species which has been categorized as "Near Threatened" (NT) by the International Union for Conservation of Nature as that may be vulnerable to endangerment in the near future, but it does not currently qualify f ...

on the

IUCN Red List The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biol ...

and two are listed as being vulnerable. Nauru is a small

atoll An atoll () is a ring-shaped island, including a coral rim that encircles a lagoon partially or completely. There may be coral islands or cays on the rim. Atolls are located in warm tropical or subtropical oceans and seas where corals can gr ...

in the Pacific Ocean with an

equatorial climate A tropical rainforest climate, humid tropical climate or equatorial climate is a tropical climate sub-type usually found within 10 to 15 degrees latitude of the equator. There are some other areas at higher latitudes, such as the coast of southeas ...

. The island's environment has been described as one of the world's most modified due to surface mining for phosphate, bombing during World War II, and rapid

urbanisation Urbanization (or urbanisation) refers to the population shift from rural to urban areas, the corresponding decrease in the proportion of people living in rural areas, and the ways in which societies adapt to this change. It is predominantly the ...

. It was covered with tropical rainforest before the 19th century, but its current vegetation consists of

strand Strand may refer to: Topography *The flat area of land bordering a body of water, a: ** Beach ** Shoreline * Strand swamp, a type of swamp habitat in Florida Places Africa * Strand, Western Cape, a seaside town in South Africa * Strand Street ...

, shrubland, scattered coconut trees, and various ornamental and fruit trees.

Habitat destruction Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...

has most likely caused a decline in the numbers of some species, such as the Micronesian imperial-pigeon and the

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 ...

. This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of the 2022 edition 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 ...

''. The family accounts at the beginning of each heading reflect this taxonomy, as do the species counts found in each family account. The following codes have been used to denote categories. Species without these tags are commonly occurring native species. *(A) Accidental – A species that rarely or accidentally occurs in Nauru. *(E) Endemic – A species endemic to Nauru. *(I) Introduced – A species introduced to Nauru as a direct or indirect consequence of human actions. *(Ex) Extirpated – A species that no longer occurs in Nauru although populations exist elsewhere.

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 comprising the

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

junglefowl 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 ...

Pigeons and doves 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'' (I) * Micronesian imperial-pigeon, ''Ducula oceanica''

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. They are brood parasites. * Long-tailed koel, ''Eudynamys taitensis''

Plovers and lapwings

Pluvialis fulva -Bering Land Bridge National Preserve, Alaska, USA-8

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'' (A) * Pacific golden-plover, ''Pluvialis fulva'' *

Lesser sand-plover The lesser sand plover (''Charadrius mongolus'') is a small wader in the plover family of birds. The spelling is commonly given as lesser sand-plover, but the official British Ornithologists' Union spelling is "lesser sand plover". The genus ...

, ''Charadrius mongolus'' (A) *

Greater sand-plover The greater sand plover (''Charadrius leschenaultii'') is a small wader in the plover family of birds. The spelling is commonly given as "greater sandplover" or "greater sand-plover", but the official British Ornithologists' Union spelling is "Gre ...

, ''Charadrius leschenaultii'' (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 that includes 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'' (A) * Whimbrel, ''Numenius phaeopus'' *

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'' *

Sharp-tailed sandpiper The sharp-tailed sandpiper (''Calidris acuminata'') (but see below) is a small wader. Taxonomy A review of data has indicated that this bird should perhaps better be placed into the genus ''Philomachus'' – as ''P. acuminatus'' – which now ...

, ''Calidris acuminata'' (A) * Gray-tailed tattler, ''Tringa brevipes'' (A) *

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'' (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 seabirds consisting of

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 Skimmer (bird), skimmers. Gulls are typically grey or white, often with black markings on the head or wings. Terns are generally smaller than gulls with more pointed wings and bills, many also having forked tails which help with aerial manoeuvrability. Both species can be found inland near lakes and rivers, however gulls have adapted well to human presence and can often be found in urban centers. Black noddies are extensively hunted as food in Nauru. *Brown noddy, ''Anous stolidus'' *Black noddy, ''Anous minutus'' *White tern, ''Gygis alba'' *Sooty tern, ''Onychoprion fuscatus'' (A) *Black-naped tern, ''Sterna sumatrana'' (A) *Great crested tern, ''Thalasseus bergii'' (A)

Tropicbirds

Order: PelecaniformesFamily: Phaethontidae Tropicbirds are slender white birds of tropical oceans, with exceptionally long central tail feathers. Their heads and long wings have black markings. *White-tailed tropicbird, ''Phaethon lepturus'' *Red-tailed tropicbird, ''Phaethon rubricauda'' (A)

Shearwaters and petrels

Order: ProcellariiformesFamily: Procellariidae The procellariiforms are a group of medium-sized petrels, characterised by united nostrils with a medium nasal septum and a long outer functional primary flight feather. *Tropical shearwater, ''Puffinus bailloni''

Frigatebirds

Order: SuliformesFamily: 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 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, ''Fregata ariel'' *Great frigatebird, ''Fregata minor''

Boobies and gannets

Order: SuliformesFamily: Sulidae The sulids comprise the gannets and Booby, boobies. Both groups are medium to large coastal seabirds that plunge-dive for fish. *Brown booby, ''Sula leucogaster'' *Red-footed booby, ''Sula sula'' (A)

Pelicans

Order: PelecaniformesFamily: 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. *Australian pelican, ''Pelecanus conspicillatus'' (A)

Herons, egrets, and bitterns

Order: PelecaniformesFamily: 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. *Pacific reef-heron, ''Egretta sacra''

Kingfishers

Order: CoraciiformesFamily: Alcedinidae Kingfishers are medium-sized birds with large heads, long pointed bills, short legs and stubby tails. *Sacred kingfisher, ''Todirhamphus sanctus'' (A) *Collared kingfisher, ''Todirhamphus chloris'' (A)

Reed warblers and allies

Order: PasseriformesFamily: Acrocephalidae The family Acrocephalidae is a group of small insectivorous passerine birds. Most have a generally undistinguished appearance, but many have distinctive songs. They are usually found in open woodland, reedbeds, or tall grass. *

, ''Acrocephalus rehsei'' (E)

Waxbills and allies

Order: PasseriformesFamily: 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 colours and patterns. *Zebra finch, ''Taeniopygia guttata'' (Ex)

References

Specific

General

* * {{cite web , last = Lepage , first = Denis , title = Checklist of Birds of Nauru , url = https://avibase.bsc-eoc.org/checklist.jsp?region=NR , work = Bird Checklists of the World , publisher = Avibase , access-date = 28 August 2021 Birds of Micronesia, 'Nauru Fauna of Nauru, Birds Lists of birds by country, Nauru Lists of biota of Nauru, Birds

Pheasants, grouse, and allies

Pigeons and doves

Cuckoos

Plovers and lapwings

Sandpipers and allies

Gulls, terns, and skimmers

Tropicbirds

Shearwaters and petrels

Frigatebirds

Boobies and gannets

Pelicans

Herons, egrets, and bitterns

Kingfishers

Reed warblers and allies

Waxbills and allies

See also

References

Specific

General