1. Ecology and Environmental Sciences Program and Climate Change Institute, University of Maine, Orono, Maine, USA
2. U.S. Environmental Protection Agency, Mid-Continent Ecology Division, Duluth, Minnesota, USA
3. Bird Group, Maine Department of Inland Fisheries and Wildlife, Bangor, Maine, USA
4. Department of Ecology and Evolutionary Biology and Center for Conservation and Biodiversity, University of Connecticut, Storrs, Connecticut, USA
5. Department of Environmental and Forest Biology, State University of New York College of Environmental Science and Forestry, Syracuse, New York, USA
6. Department of Entomology and Wildlife Ecology, University of Delaware, Newark, Delaware, USA
7. U.S. Fish and Wildlife Service, Region 5 Division of Natural Resources, Stewart B. McKinney National Wildlife Refuge, Westbrook, Connecticut, USA
8. Department of Natural Resources and the Environment, University of New Hampshire, Durham, New Hampshire, USA
9. U.S. Fish and Wildlife Service, Rachel Carson National Wildlife Refuge, Wells, Maine, USA
10. U.S. Fish and Wildlife Service, Parker River National Wildlife Refuge, Newburyport, Massachusetts, USA