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2161by Bexar Audubon Society“... is primarily an ornithologist and has done field research with a variety of bird species including spotted owls...”
Published 2012
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2162by Bexar Audubon Society“... million small mammals and birds annually in the United Kingdom. University of Wisconsin ornithologist, Dr...”
Published 1998
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2163by Muir, John“... was on the Harriman Expedition I asked Robert Ridgeway, the eminent ornithologist, how these sudden flittings were...”
Published 1912
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2164by Muir, John“... was on the Harriman Expedition I asked Robert Ridgeway, the eminent ornithologist, how these sudden flittings were...”
Published 1912
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