. . . . . . . . "1986-01-01T00:00:00Z"^^ . . "Aythya marila" . . "Hydrobiidae" . . "Ross, R.K., S.A. Petrie, S.S. Badzinski, and A. Mullie. 2005. Autumn diet of greater scaup, lesser scaup, and long-tailed ducks on eastern Lake Ontario prior to zebra mussel invasion. Wildlife Society Bulletin 33:81-91." . . . . "Allen Hurlbert. 2017. Avian Diet Database." .