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By: Wright, A. L. (Anthony L.), - Hayward, G DType: ArticleIn: The journal of raptor researchVolume: 32Series:Issue: 2Date: 1998Page Range: 77--81Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Hayward, G DType: ArticleIn: The journal of raptor researchVolume: 21Series:Issue: 3Date: 1987Page Range: 98--102Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Hayward, G DType: ArticleIn: The journal of raptor researchVolume: 31Series:Issue: 2Date: 1997Page Range: 114--124Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: