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By: Craig, Erica H. - Craig, Timothy H. - Powers, L RType: ArticleIn: Raptor researchVolume: 20Series:Issue: 2Date: 1986Page Range: 69--71Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]Subjects:
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By: Powers, L R - Craig, Timothy H. - Martin, JType: ArticleIn: Raptor researchVolume: 18Series:Issue: 2Date: 1984Page Range: 78--79Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]Subjects:
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By: Powers, L R - Dale, Allen - Gaede, Peter A. - Rodes, C - Nelson, L - Dean, John J. - May, J DType: ArticleIn: The journal of raptor researchVolume: 30Series:Issue: 1Date: 1996Page Range: 15--20Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: