1. U.S. Geological Survey; Montana Cooperative Wildlife Research Unit; 205 Natural Sciences Building; University of Montana; Missoula MT 59812 USA
2. U.S. Fish and Wildlife Service; University Hall; University of Montana; Missoula MT 59812 USA
3. Montana Fish, Wildlife, and Parks; 1420 E 6th Avenue Helena MT 59620 USA
4. Montana Fish, Wildlife, and Parks; P.O. Box 527 White Sulphur Springs MT 59645 USA
5. Wildlife Biology Program; Department of Ecosystem and Conservation Sciences; W. A. Franke College of Forestry and Conservation; University of Montana; Missoula MT 59812 USA
6. Montana Fish, Wildlife, and Parks; 1400 S 19th Avenue Bozeman MT 59718 USA
7. Montana Cooperative Wildlife Research Unit; 205 Natural Sciences Building; University of Montana; Missoula MT 59812 USA
8. Montana Fish, Wildlife, and Parks; 3201 Spurgin Road Missoula MT 59804 USA