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By: Stalmaster, M V - Kaiser, James L. - Skagen, S KType: ArticleIn: The journal of raptor researchVolume: 27Series:Issue: 1Date: 1993Page Range: 93--93Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Henny, C J - Kaiser, James L.Type: ArticleIn: The journal of raptor researchVolume: 29Series:Issue: 1Date: 1995Page Range: 58--58Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: