. . . . . . . . . "1973-04-01T00:00:00Z"^^ . . "Bubo virginianus" . . "Rattus norvegicus" . . "Petersen, L. 1979. Ecology of Great Horned Owls and Red-tailed Hawks in southeastern Wisconsin. Wisconsin Department of Natural Resources Technical Bulletin 111." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .