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By: Forsman, Eric D - Kaminski, Timmothy J - Lewis, J C - Maurice, K J - Sovern, S G - Ferland, Cheron - Glenn, Elizabeth M.Type: ArticleIn: The journal of raptor researchVolume: 39Series:Issue: 4Date: 2005Page Range: 365--377Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: