. . . . . . . . "1912-09-01T00:00:00Z"^^ . . "Empidonax alnorum/traillii" . . "Lexiphanes saponatus" . . "Beal, F. E. L. 1912. Food of our more important flycatchers. U.S. Department of Agriculture, Biological Survey Bulletin No. 44." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .