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By: Avery, Michael L. - Humphrey, J S - Tillman, Eric A. - Phares, K O - Hatcher, J EType: ArticleIn: The journal of raptor researchVolume: 36Series:Issue: 1Date: 2002Page Range: 45--50Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: