This subclass is divided into 2superorders, Odontog nathae, and Neognathae.
(from ratis, "raft", refe carinates (keeled)rring to the flatness of Can fly the sternum) Cannot fly
• Order Columbiformes. Doves• Order Pelecaniformes. Pelicans, cormorants, etc.• Order Anseriformes. Ducks, geese, other waterfowl.• Order Falconiformes. Hawks, eagles, vultures.• Order Galliformes. Grouse, quail, domestic foul.• Order Psittaciformes. Parrots, paroquetes.• Order Passeriformes. Perching birds– up to 64 families, including song birds.• And about 15 other living orders.