Birds of the world

Non-passerines. Ostrich and allies ; Diver and grebes ; Albatross, petrels, and allies ; Pelicans and allies ; Herons, bitterns, storks, and allies ; Swans, geese, and ducks ; Birds of prey : eagles, vultures, hawks, and allies ; Fowl ; Cranes and allies ; Waders, gulls, auks, and allies ; Sandgrouse, pigeons, and doves ; Parrots and allies ; Cuckoos and allies ; Owls ; Nightjars and allies ; Swifts and hummingbirds ; Mousebird and trogons ; Kingfishers, bee-eaters, hornbills, and allies ; Woodpeckers, barbets, toucans, and allies

Passerines.