. . . . . . . "1879-06-01T00:00:00Z"^^ . . "Passer domesticus" . . "Poaceae" . . "Kalmbach, E. R. 1940. Economic status of the English Sparrow in the United States. USDA Tech Bull. 711." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .