Harriers (Circus) is a genus of bird (Aves) in the family Accipitridae (Hawks, Eagles, and Kites).
Circus ranivorus
Circus maurus
Circus cinereus
Circus spilonotus
Circus cyaneus
Circus buffoni
Circus macrosceles
Circus pygargus
Circus hudsonius
Circus macrourus
Circus spilothorax
Circus melanoleucos
Circus maillardi
Circus assimilis
Circus approximans
Circus aeruginosus
Accipiter
Milvus
Buteogallus
Buteo
Haliaeetus
Aquila
Circus
Parabuteo
Busarellus
Sarcogyps
Hieraaetus
Leucopternis
Hamirostra
Gampsonyx
Neophron
Kaupifalco
Polyboroides
Micronisus
Stephanoaetus
Lophotriorchis
Gypaetus
Morphnarchus
Icthyophaga
Geranoaetus
Ictinaetus
Circaetus
Butastur
Eutriorchis
Bermuteo
Trigonoceps
Morphnus
Lophaetus
Microspizias
Cryptoleucopteryx
Gypohierax
Nisaetus
Leptodon
Harpyopsis
Spizaetus
Rupornis
Pithecophaga
Haliastur
Pseudastur
Geranospiza
Harpagus
Urotriorchis
Macheiramphus
Spilornis
Aviceda
Aegypius
Megatriorchis
Helicolestes
Melierax
Chelictinia
Lophoictinia
Polemaetus
Erythrotriorchis
Dryotriorchis
Henicopernis
Necrosyrtes
Terathopius
Chondrohierax
Ictinia
Rostrhamus
Elanoides