prepared by United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, in cooperation with United States Department of the Interior, Fish and Wildlife Service and Wisconsin Department of Natural Resources
prepared by United States Department of Agriculture (USDA), Animal and Plant Health Inspection Service (APHIS), Wildlife Services (WS), in cooperation with Wisconsin Department of Natural Resources (WDNR) ... [and others]
narrated by F. Murray Abraham ; a production of Brian Leith Productions, Thirteen/WNET New York and BBC ; producer, Brian Leith ; director, Steve Gooder