1. United States Department of Agriculture, Wildlife Services, National Wildlife Research Center, Department of Wildland Resources, Utah State University, Logan, UT, USA
2. Point Defiance Zoo and Aquarium, Tacoma, WA, USA
3. Department of Wildland Resources, Utah State University, Logan, UT, USA
4. United States Fish and Wildlife Service, Manteo, NC, USA
5. Maine Department of Inland Fisheries and Wildlife, Greenville, ME, USA