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By: Balgooyen, Thomas G.Type: ArticleIn: The journal of raptor researchVolume: 23Series:Issue: 3Date: 1989Page Range: 85--93Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Balgooyen, Thomas G.Type: ArticleIn: The journal of raptor researchVolume: 24Series:Issue: 1-2Date: 1990Page Range: 27--28Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Balgooyen, Thomas G.Type: ArticleIn: The journal of raptor researchVolume: 22Series:Issue: 2Date: 1988Page Range: 71--71Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: