. . . . . . . . . "1950-01-01T00:00:00Z"^^ . . "Pooecetes gramineus" . . "Hemiptera" . . "Evans, F. C. 1964. The food of Vesper, Field, and Chipping sparrows nesting in an abandoned field in southeastern Michigan. American Midland Naturalist 72:57-75." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .