Wires, Linda R., Stephen J. Lewis, Gregory J. Soulliere, Sumner W. Matteson, D. V. “Chip” Weseloh, Robert P. Russell, and Francesca J. Cuthbert. 2010. Upper Mississippi Valley / Great Lakes Waterbird Conservation Plan: A Plan Associated with the Waterbird Conservation for the Americas Initiative. Final Report. Fort Snelling, MN: U.S. Department of the Interior, Fish and Wildlife Service.