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, 2022 edition.
These birds are adapted to an aquatic existence with webbed feet, flattened bills, and feathers that are excellent at shedding water due to an oily coating.
Order: Phoenicopteriformes Family: Phoenicopteridae Flamingos are gregarious wading birds, usually 3 to 5 feet (0.9 to 1.5 m) tall, found in both the Western and Eastern Hemispheres.
Their oddly shaped beaks are specially adapted to separate mud and silt from the food they consume and, uniquely, are used upside-down.
Order: Caprimulgiformes Family: Apodidae Swifts are small birds which spend the majority of their lives flying.
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.
Order: Charadriiformes Family: Turnicidae The buttonquails are small, drab, running birds which resemble the true quails.
It resembles a plover but with very long grey legs and a strong heavy black bill similar to a tern.
It has black-and-white plumage, a long neck, partially webbed feet and a bill designed for eating crabs.
Terns are a group of generally medium to large seabirds typically with grey or white plumage, often with black markings on the head.
Order: Phaethontiformes Family: Phaethontidae Tropicbirds are slender white birds of tropical oceans, with exceptionally long central tail feathers.
Order: Sphenisciformes Family: Spheniscidae The penguins are a group of aquatic, flightless birds living almost exclusively in the Southern Hemisphere.
Most penguins feed on krill, fish, squid and other forms of sealife caught while swimming underwater.
Order: Procellariiformes Family: Procellariidae The procellariids are the main group of medium-sized "true petrels", characterised by united nostrils with medium septum and a long outer functional primary.
Order: 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.
Order: Strigiformes Family: Strigidae The typical owls are small to large solitary nocturnal birds of prey.
Order: Coraciiformes Family: Coraciidae Rollers resemble crows in size and build, but are more closely related to the kingfishers and bee-eaters.
Old World parrots are found from Africa east across south and southeast Asia and Oceania to Australia and New Zealand.
Corvids are above average in size among the Passeriformes, and some of the larger species show high levels of intelligence.
They have a slender streamlined body, long pointed wings and a short bill with a wide gape.
Some are colourful with yellow, red or orange vents, cheeks, throats or supercilia, but most are drab, with uniform olive-brown to black plumage.
Order: Passeriformes Family: Estrildidae The estrildid finches are small passerine birds of the Old World tropics and Australasia.
Order: Passeriformes Family: Viduidae The indigobirds are finch-like species which usually have black or indigo predominating in their plumage.