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Canvasback Mortality from Illegal Hunting on the Upper Mississippi River


We thank the law enforcement personnel with the U. S. Fish and Wildlife Service and Wisconsin Department of Natural Resources who assisted with this study. A. W. Bennett, A. F. Boysen, J. A. Breidel, C. A. Eloranta, W. L. Green, C. O. Kochanny, D. R. Mroch, J. S. Nelson, R. A. Nissen, D. T. Oles, M. V. Slivinski, M. L. Vollmar, H. S. Sampson collected and entered field data. We thank the many waterfowlers who helped their peers with bird identification and provided information to law enforcement and management personnel. T. L. Shaffer and R. C. Kahn-Malek assisted with statistical analysis. J. C. Bartonek, J. A. Beiser, G. M. Haramis, R. E. Kirby, and T. L. Shaffer commented on earlier drafts of this manuscript.

GIF -- Picture of authors.

From left to right: John F. Wetzel, Carl E. Korschgen, Kevin P. Kenow, and James (Jim) M. Nissen.

Carl E. Korschgen (left-center) is Chief of the Section of Wildlife Ecology at the National Biological Service Upper Mississippi Science Center located in La Crosse, Wisconsin. He received his B.S. and M.S. from the University of Missouri and his Ph.D. from the University of Maine. His research emphasis is the ecology and habitat requirements of waterfowl and the life history and ecology of aquatic plants. Kevin P. Kenow (right-center) is a Wildlife Biologist with the National Biological Service at the Upper Mississippi Science Center in La Crosse, Wisconsin. He received his B.S. from the University of Minnesota and his M.S. from the University of Wisconsin. His research interests are in waterfowl and wetland ecology, and radio-telemetry technique applications for avian studies. James (Jim) M. Nissen (right) has been the District Manager on the La Crosse District of the Upper Mississippi River National Wildlife and Fish Refuge since 1989. Previous duty stations include Horicon and Ruby Lake National Wildlife Refuges. He received his B.S. from the University of Nebraska. His primary professional interest is in waterfowl and wetland management. John F. Wetzel (left) is a Wildlife Biologist with the Mississippi River Unit of the Wisconsin Department Natural Resources. He received his B.S. and M.S. from the University of Minnesota. He has worked with the Wisconsin DNR for 23 years, including an 8-year position as the state-wide waterfowl biologist. His primary professional interest is in wetland and waterfowl management.

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