Affiliation: | 1. Cooperative Wildlife Research Laboratory, Center for Ecology, and Department of Zoology, Southern Illinois University, Carbondale, IL, USA E-mail: rurbanek@atu.edu;2. Cooperative Wildlife Research Laboratory, Department of Forestry, Southern Illinois University, Carbondale, IL, USA;3. Department of Forest Resources, University of Minnesota, St. Paul, MN, USA;4. McHenry County Conservation District, Woodstock, IL, 60098 USA |