1. Department of Human Dimensions of Natural Resources, Warner College of Natural Resources Colorado State University 1480 Campus Delivery Fort Collins CO 80523 USA
2. National Wildlife Research Center, United States Department of Agriculture, Animal and Plant Health Inspection Service Wildlife Services Fort Collins CO 80521 USA
3. Department of Rangeland, Wildlife, and Fisheries Management Texas A&M University 495 Horticulture Rd College Station TX 77843 USA