. . . . . . . . "1946-01-01T00:00:00Z"^^ . . "Tyto alba" . . "Sorex" . . "Pearson, O. P. and A. K. Pearson. 1947. Owl predation in Pennsylvania, with notes on the small mammals of Delaware County. J. Mammal. 28:137-147." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .