The effect of altered streamflow on migratory birds of the Yellowstone River Basin, Montana effectno7yellowofalteredrich Year: 1977 O r— '^ If) = <T) a) -3 — O S9Xau8p|09 jo jeqajnN 57 OJ i— S- T- Z3 ca

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Photo credit: © Bookend / Alamy / Afripics
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