Northern Prairie Wildlife Research Center
Klett, A. T., H. F. Duebbert, C. A. Faanes, and K. F. Higgins. 1986. Techniques for studying nest success of ducks in upland habitats in the Prairie Pothole Region. U. S. Fish and Wildl. Serv. Resour. Publ. 158. 24pp. Klett, A. T., T. L. Shaffer, and D. H. Johnson. 1988. Duck nest success in the prairie pothole region of the United States. Journal of Wildlife Management 52:431-440. Shaffer, T. L., and W. E. Newton. Duck nest success in the Prairie Potholes. 1995. In E. T. LaRoe III, G. S. Farris, C. E. Puckett, and P. D. Doran, editors. Our living resources: a report to the Nation on the distribution, abundance, and health of U. S. plants, annimals, and ecosystems. U. S. Department of the Interior, National Biological Service, Washington, D. C. 530 pp.