CONTENTS IX 



Order PELECANIFORMES . . .... 505 



Family PHALACROCORACID^E 505 



Genus Phalacrocorax ......... 505 



Order CATHARTIDIFORMES . . . 525 



Family CATHARTICS 525 



Genus Vultur . . . . . . . . . . 5 2 5 



Genus Coragyps ....... 54 



Genus Cathartes .......... 546 



Order ACCIPITRIFORMES . 555 



Family FALCONID^; 555 



Subfamily POLYBORINM 555 



Genus Polyborus ......... 555 



Genus Ibycter ........ 566 



Genus Milvago ........ 582 



Subfamily ACCIPITRIN^E 588 



Genus Circus. ......... 588 



Genus Accipiter . . . . . . . . . 605 



Subfamily B UTEONIN& 609 



Genus Heterospizias . . . . . . . 610 



Genus Tachytriorchis . . . . . . . .616 



Genus Buteo .......... 622 



Genus Harpyhaliatus ........ 652 



Subfamily AQUILINM 654 



'Genus Falco .......... 655 



Genus Cerchneis ........ 666 



Order STRIGI FORMES . 673 



Family STRIGIDS .... 673 



Genus Asia ........ 673 



Genus Btibo 683 



Genus Strix 692 



Genus Speotyto ..... 696 



Genus Glaucidium ...... 77 



Family TYTONIDS .... 712 



Genus Tyto 7" 



Order PSITTACIFORMES .... 7*9 



Family PSITTACID.E ... 7 r 9 



Subfamily ARIN^E .... 7^9 



Genus Cyanoliseus . . . . . . . . 7 J 9 



Genus Microsittace ........ 7 22 



