Wikipedia: Aves

Kingdom Animalia, Phylum Chordata, Class Aves

Contains Orders :

 Order Passeriformes? (songbirds, or passerines and perching birds)
 Order Podicipediformes? (grebe?)
 Order Struthioniformes? (ostrich)
 Order Rheiformes? (rhea)
 Order Casuariiformes? (sassowary? and emu?)
 Order Apterygiformes? (kiwi)
 Order Tinamiformes? (tinamou?)
 Order Galliformes? (domestic fowl? and game bird)
 Order Anseriformes? (waterfowl)
 Order Gruiformes? (crane?)
 Order Piciformes? (woodpecker? and toucan)
 Order Coraciiformes? (kingfisher, roller? and hornbill?)
 Order Trogoniformes? (trogon?)
 Order Coliiformes? (mousebird?)
 Order Cuculiformes? (cuckoo?)
 Order Psittaciformes? (parrot?, cockatoo? and lorie?)
 Order Apodiformes? (swift? and hummingbird?)
 Order Strigiformes? (owl?)
 Order Caprimulgiformes? (nightjar?, nighthawk? and frogmouth?)
 Order Columbiformes? (dove? and pigeon?)
 Order Charadriiformes? (gull?)
 Order Falconiformes (diurnal birds of prey: eagle?, hawk?, falcon?)
 Order Pelecaniformes? (pelican?, gannet? and cormorant?)
 Order Ciconiiformes (heron?, stork? and egret?)
 Order Sphenisiformes? (penguin)
 Order Gaviiformes? (divers)
 Order Procellariiformes? (shearwater?, petrel? and albatross)

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