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Rare Birds of Britain and Ireland
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Rare Birds of California
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Rare Birds of the West Coast of North America
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Rare Birds Yearbook 2008: The World's 189 Most Threatened Birds
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Rare Birds Yearbook 2009: The World's 190 Most Threatened Birds
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Rare Birds: The Extraordinary Tale of the Bermuda Petrel and the Man Who Brought It Back from Extinction
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Rarest of the Rare: The Stories Behind the Harvard Museum of Natural History
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Raymond Ching: The Bird Paintings
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Records of the Zoological Survey of India: Birds of Goa
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Red-breasted Sapsucker and Red-naped Sapsucker: Birds of North America species account
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Red-cockaded Woodpecker Symposium II Proceedings
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Red-shouldered Hawk: Birds of North America species account
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Redwood Region Flower Finder: Identifying Wildflowers of California's Coastal Fogbelt
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Regulation of Spring Migration in Juncos
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Relationships of the Superorders Alectoromorphae and Charadriomorphae
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Remembering the Tody: A Lifetime of Bird-Watching in Jamaica
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Repeuplement Des Chasses La Culture Du Gibier A Plume
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Report of the Ornithologist and Mammalogist for 1891 by C. Hart Merriam
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Report of the Ornithologist and Mammalogist, C. Hart Merriam, M.D., for The Year 1888
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Report of The Ornithologist C. Hart Merriam, M.D. For the Year 1886
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Report on the McCabe Collection of British Columbian Birds
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Restoring North America's Birds: Lessons from Landscape Ecology
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Return of the Osprey: A Season of Flight and Wonder
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