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By: Rosenfield, R NType: ArticleIn: Raptor researchVolume: 18Series:Issue: 1Date: 1984Page Range: 6--9Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]Subjects:
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By: Rosenfield, R NType: ArticleIn: Raptor researchVolume: 16Series:Issue: 2Date: 1982Page Range: 63--63Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]Subjects:
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By: Andersen, David E - Destefano, Stephen - Goldstein, Michael I. - Titus, Kimberly - Crocker-Bedford, D. Coleman - Keane, John J - Anthony, Robert G. - Rosenfield, R NType: ArticleIn: The journal of raptor researchVolume: 39Series:Issue: 3Date: 2005Page Range: 192--209Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: