Class Aves (Birds)


Order Accipitriformes Accipitriformes	Order Anseriformes Waterfowl
Order Apodiformes Swifts & Hummingbirds	Order Apterygiformes Apterygiformes
Order Bucerotiformes Bucerotiformes	Order Caprimulgiformes Goatsuckers
Order Cariamiformes Cariamiformes	Order Casuariiformes Cassowaries & Emus
Order Charadriiformes Gulls & Shore Birds	Order Ciconiiformes Herons, Storks & Relatives
Order Coliiformes Mousebirds	Order Columbiformes Doves & Pigeons
Order Coraciiformes Rollers, Kingfishers & Relatives	Order Cuculiformes Cuckoos
Order Dinornithiformes Kiwis	Order Falconiformes Falcons, Hawks & Vultures
Order Galliformes Domestic Fowl & Game Birds	Order Gaviiformes Divers & Loons
Order Gruiformes Cranes, Hemipodes & Gallinules	Order Leptosomiformes Leptosomiformes
Order Otidiformes Otidiformes	Order Passeriformes Songbirds & Perching Birds
Order Pelecaniformes Cormorants & Pelicans	Order Phaethontiformes Phaethontiformes
Order Phoenicopteriformes Phoenicopteriformes	Order Piciformes Woodpeckers, Toucans & Relatives
Order Podicipediformes Grebes	Order Procellariiformes Albatrosses & Fulmars
Order Psittaciformes Parrots	Order Rheiformes Rheas
Order Sphenisciformes Penguins	Order Strigiformes Owls
Order Struthioniformes Ostriches	Order Tinamiformes Tinamous
Order Trogoniformes Trogons

The Class Aves includes all birds, a diverse group of warm-blooded, feathered vertebrates with hollow bones, beaks, and high metabolic rates. Birds are adapted for flight, though some species are flightless, and they reproduce by laying eggs with hard shells. They possess keen senses, especially vision, and complex behaviors including migration, vocal communication, and social interactions. Birds inhabit nearly every ecosystem, playing key roles in pollination, seed dispersal, and maintaining ecological balance.