We thank all the field assistants who helped collect data, the three Master of Science students who lead the sites, and DU staff who volunteered their time. Partners and financial contributors included: IWWR of Ducks Unlimited Canada; Ohio Department of Natural Resources, Division of Wildlife; Indiana Department of Natural Resources; Michigan Department of Natural Resources; Wisconsin Department of Natural Resources; USFWS: Upper Mississippi River – Great Lakes Joint Venture; USEPA Great Lakes National Program Office; USFWS Great Lakes Coastal Program; Saginaw Bay WIN; The Bruning Foundation; The Christel DeHaan Family Foundation; Winous Point Marsh Conservancy; West Rosendale Hunt Club; Kellogg Bird Sanctuary – Michigan State University; Herbert H. and Grace A. Dow Foundation; Spencer T. and Anne W. Olin – Wetland and Waterfowl Research Fellowship for graduate student support; Guelph University; Montana State University; Oregon State University; and several anonymous private donors.