Reference citation: Perry, M.C. and F.M. Uhler. 1988. Food habits and distribution of wintering canvasbacks, Aythya valisineria, on Chesapeake Bay. Estuaries 11:57-67.
Source citation: Allen Hurlbert. 2017. Avian Diet Database.
Reference citation: Perry, M.C. and F.M. Uhler. 1982. Food habits of diving ducks in the Carolinas. Proceedings of the Southeastern Association of Fish and Wildlife Agencies. Volume 36. Southeastern Association of Fish and Wildlife Agencies.
Source citation: Allen Hurlbert. 2017. Avian Diet Database.
Reference citation: Perry, M.C. and F.M. Uhler. 1982. Food habits of diving ducks in the Carolinas. Proceedings of the Southeastern Association of Fish and Wildlife Agencies. Volume 36. Southeastern Association of Fish and Wildlife Agencies.
Source citation: Allen Hurlbert. 2017. Avian Diet Database.
