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By: Cooper, John E. - Cooper, David G.Type: ArticleIn: Proceedings of the Biological Society of WashingtonVolume: 116Series:Issue:Date: 2003Page Range: 920--932Publication Info: Washington Biological Society of WashingtonSubjects:
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By: Cooper, John E. - Braswell, Alvin L.Type: ArticleIn: BrimleyanaVolume: 22Series:Issue:Date: 1995Page Range: 87--132Publication Info: [Raleigh, NC, North Carolina State Museum of Natural History], 1979-Subjects:
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By: Cooper, John E.Type: ArticleIn: The journal of raptor researchVolume: 30Series:Issue: 1Date: 1996Page Range: 45--45Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Cooper, John E.Type: ArticleIn: The journal of raptor researchVolume: 21Series:Issue: 1Date: 1987Page Range: 21--26Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: