. . . . . . . "1941-07-01T00:00:00Z"^^ . . "Progne subis" . . "Polyphaga" . . "Beal, F. E.L. 1941. Common birds of southeastern United States in relation to agricutlure. U.S. Fish and Wildlife Service Conservation Bulletin 15." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .