Rocky Mountain front raptor survey, December 1982-August 1984 DuBois, Kristi. creator U.S. Fish and Wildlife Service contributor Montana. Department of Fish, Wildlife, and Parks contributor text book Helena?, Mont Montana Dept. of Fish, Wildlife and Parks [1984] 1984
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ENG "Funded by United States Fish and Wildlife Service." "Contract no. FWS-6-81-112." Cover title. Birds of prey Rocky Mountains (U.S.) 598.9/09786/5 https://www.biodiversitylibrary.org/bibliography/69152 41707452 10.5962/bhl.title.69152 Mt