The genus Butastur was introduced in 1843 by the English naturalist Brian Houghton Hodgson with the white-eyed buzzard as the type species.[1][2] The genus name is a portmanteau of the genus Buteo introduced by Bernard Germain de Lacépède for the buzzards and Astur introduced by Lacépède for the goshawks.[3] The genus now contains four species.[4]