1. Department of Natural Resource Management; South Dakota State University; Brookings, SD 57007 USA
2. Habitat and Population Evaluation Team; United States Fish and Wildlife Service; 18965 County Highway 82 Fergus Falls, MN 56537 USA
3. Department of Fisheries, Wildlife and Conservation Biology; University of Minnesota; St. Paul, MN 55108 USA
4. United States Geological Survey; Northern Prairie Wildlife Research Center; 8711 37th Street SE Jamestown, ND 58401 USA
5. United States Geological Survey, South Dakota Cooperative Fish and Wildlife Research Unit; Department of Natural Resource Management, South Dakota State University; Brookings, SD 57007 USA