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By: Berry, John D. - Henny, C JType: ArticleIn: The journal of raptor researchVolume: 29Series:Issue: 4Date: 1995Page Range: 279--281Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Phillips, R L - Cummings, J L - Berry, John D.Type: ArticleIn: The journal of raptor researchVolume: 26Series:Issue: 1Date: 1992Page Range: 43--43Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: