tall, dead trees that are left standing in the woods. References Collins: Complete Field Guide to American Wildlife. Over, W. H., 1941. Mammals of South Dakota, Museum and Department of Zoology, USD, Vermillion, SD. Grzimek, H.C. Bernard, 1975. Grzimek's Animal Life Encyclopedia, Vol 12 (Mammals III). Van Nostrand and Reinhold Company New York. Jones, J. Knox, et al, 1983. Mammals of the Northern Great Plains. University of Nebraska Press. Lincoln, NE. Selected Resources for Teachers Wild Wild World of Animals, Rabbits and other small animals, published by Time-Life Films. Animals of the Prairie, Miller, W. And Larson, D. 1964 Published by the Record Printers, Grafton, ND.