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By: Cavanagh, Paul M.Type: ArticleIn: The journal of raptor researchVolume: 24Series:Issue: 3Date: 1990Page Range: 68--69Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Ritchison, G - Cavanagh, Paul M.Type: ArticleIn: The journal of raptor researchVolume: 26Series:Issue: 2Date: 1992Page Range: 66--73Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Cavanagh, Paul M. - Griffin, Curtice RType: ArticleIn: The Wilson bulletinVolume: 105Series:Issue: 2Date: 1993Page Range: 333--338Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Cavanagh, Paul M. - Ritchison, GaryType: ArticleIn: The Wilson bulletinVolume: 99Series:Issue: 4Date: 1987Page Range: 620--627Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: