Book 179 Government Document 49 eBook 34 Microform 10 Thesis 10 Video 5 Conference Proceeding 2 DVD 2 VHS 2 CD 1 see all…

U.S. Fish and Wildlife Service 13 Academy of Natural Sciences of Philadelphia 8 American Ornithologists' Union 8 Texas. Parks and Wildlife Department 5 Northern Prairie Wildlife Research Center 4 United States. Bureau of Biological Survey 4 Barton, Jill 3 Ginsburg, Mirra 3 Hest, Amy 3 Lansdale, Joe R., 1951- 3 McCloskey, Robert, 1914-2003 3 Simmons, Jane 3 Western Energy and Land Use Team 3 Anderson, Stanley H. 2 Aruego, Jose 2 Beasom, S. L. (Samuel LaMonte), 1945- 2 Boyer, Trevor 2 Brewster, Patience 2 Cherry, P. (Peter), 1937- 2 Cornell University. Laboratory of Ornithology 2 Cronin, Doreen 2 Dewey, Ariane 2 Food and Agriculture Organization of the United Nations 2 Geological Survey (U.S.) 2 Gooders, John 2 Grand, James Barry, 1959- 2 Holderread, Dave 2 Jaques, Francis Lee, 1887-1969 2 Johnsgard, Paul A. 2 Lansdale, Karen 2 see all…

English 206 Spanish 12 French 1 German 1 Japanese 1

United States 14 Texas 10 North America 7 Prairie Pothole Region 4 Canada 3 Alaska 2 Boston (Mass.) 2 Europe 2 Japan 2 Louisiana 2 Mars 2 Mars (Planet) 2 Ohio 2 Australia 1 Cleveland 1 Coastal Bend Region 1 Colorado 1 France 1 Georgia 1 Great Britain 1 Great Lakes Region (North America) 1 Great Plains 1 Géorgie (État) 1 Iowa 1 Laguna Madre (Tex.) 1 Lake Somerville 1 Memphis (Tenn.) 1 Mission Bay 1 New Mexico 1 New York 1 see all…