1. Montana Cooperative Wildlife Research Unit, Wildlife Biology Program, 205 Natural Sciences Building University of Montana, Missoula Montana 59812 USA
2. U.S. Geological Survey, Montana Cooperative Wildlife Research Unit, Wildlife Biology Program, 205 Natural Sciences Building University of Montana Missoula Montana 59812 USA
3. Montana Fish, Wildlife and Parks 1420 E. 6th St. Helena MT 59620
4. U.S. Geological Survey, Idaho Cooperative Fish and Wildlife Research Unit, 875 Perimeter Drive MS 1141 University of Idaho Moscow Idaho 83844 USA
5. Division of Biological Sciences University of Montana Missoula Montana 59812
6. Montana Fish, Wildlife and Parks 4600 Giant Springs Road Great Falls MT 59405
7. Montana Fish, Wildlife and Parks 490 North Meridian Road Kalispell MT 59901