Aves
Class within Chordata
Accipitriformes
Aegotheliformes
Aepyornithiformes
Anseriformes
Apodiformes
Apterygiformes
Bucerotiformes
Caprimulgiformes
Cariamiformes
Casuariiformes
Cathartiformes
Charadriiformes
Ciconiiformes
Columbiformes
Coraciiformes
Cuculiformes
Dinornithiformes
Falconiformes
Galliformes
Gastornithiformes
Gaviiformes
Gruiformes
Musophagiformes
Odontopterygiformes
Opisthocomiformes
Otidiformes
Passeriformes
Pelecaniformes
Phaethontiformes
Phoenicopteriformes
Piciformes
Podargiformes
Podicipediformes
Procellariiformes
Psittaciformes
Rheiformes
Sphenisciformes
Steatornithiformes
Strigiformes
Struthioniformes
Suliformes
Trogoniformes