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By: Young, Kendal E., - Zwank, Phillip J., - Valdez, Raul - Dye, J L - Tarango Arámbula, Luis AntonioType: ArticleIn: The journal of raptor researchVolume: 31Series:Issue: 4Date: 1997Page Range: 376--380Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: