List of birds of Nauru

[7] 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.

They are small to medium-sized birds with compact bodies, short, thick necks and long, usually pointed, wings.

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.

Terns are generally smaller than gulls with more pointed wings and bills, many also having forked tails which help with aerial manoeuvrability.

[15] Order: Pelecaniformes   Family: Phaethontidae Tropicbirds are slender white birds of tropical oceans, with exceptionally long central tail feathers.

Having the largest wingspan to body weight ratio of any bird, they are essentially aerial, able to stay aloft for more than a week.

[19] Order: Pelecaniformes   Family: Pelecanidae Pelicans are large water birds with a distinctive pouch under their beak.

Members of Ardeidae fly with their necks retracted, unlike other long-necked birds such as storks, ibises and spoonbills.

[21] Order: Coraciiformes   Family: Alcedinidae Kingfishers are medium-sized birds with large heads, long pointed bills, short legs and stubby tails.

[23] Order: Passeriformes   Family: Estrildidae The estrildid finches are small passerine birds of the Old World tropics and Australasia.