. . . . . . . . . . "1979-04-01T00:00:00Z"^^ . . "Buteo regalis" . . "Passeriformes" . . "Cottrell, M. J. 1981. Resource partitioning and reproductive success of three species of hawks (Buteo spp.) in an Oregon prairie. Master's Thesis. Oregon State University Corvallis." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .