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By: Mineau, P - Fletcher, Mark R. - Glaser, Linda C. - Thomas, Nancy J. (Nancy Jeanne), - Brassard, Candace - Wilson, Laurie K. - Elliott, J E - Lyon, L A - Henny, C J - Bollinger, Trent, - Porter, S LType: ArticleIn: The journal of raptor researchVolume: 33Series:Issue: 1Date: 1999Page Range: 1--37Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: