Tng b chim bi (Natantes) Ch c mt b chim cnh ct(Sphenisciformes), gm khong 10 loi.

Bi gii, khng bay Cnh bin i thnh mi cho Xng c c g li hi pht trin. Chn c mng bi Sng Nam bn cu, t Nam cc n oGalapagos.

B Sphenisciformes Chn c mng bi Cnh c s dnglm mi cho khi bi

Chim cnh ct

Tng b chim bay (Volantes) Bao gm tt c cc loi chim cn li. Cnhxng, c c cu to in hnh ca loichim, c khong 8600 loi, chia thnh 34 b

B Pelecaniformes (B nng)

Pelecanus philippensis

B Ciconiiformes (Hc) Chn di li C di m

C trngTn khoa hc : Egretta garzettaH: Dic ArdeidaeB: Hc Coconiiformes

11/24/2011 1:47:43 PMNguyn Hu Tr168

C rng chu M Mycteriaamericana