. . . . . . . . . "1976-01-01T00:00:00Z"^^ . . "Buteo regalis" . . "Lepus townsendii" . . "Blair and schitoskey. 1982. Breeding Biology and Diet of the Ferruginous Hawk in South Dakota. Wilson Bulletin 94: 46-54" . . . . "Allen Hurlbert. 2017. Avian Diet Database." .