. . . . . . . . "1981-04-01T00:00:00Z"^^ . . "Passer domesticus" . . "Polygonum" . . "Gavett, A. P. and J. S. Wakeley. 1986. Diets of House Sparrows in urban and rural habitats. Wilson Bulletin 98:137-144." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .