1. Long Point Waterfowl and Wetlands Research Program Birds Canada Port Rowan Ontario Canada
2. Biology Department Acadia University Wolfville Nova Scotia Canada
3. Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada, National Wildlife Research Centre Carleton University Ottawa Ontario Canada
4. Department of Biology University of Saskatchewan Saskatoon Saskatchewan Canada
5. School of Environment and Sustainability University of Saskatchewan Saskatoon Saskatchewan Canada