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By: Pavezi, Eduardo F - Gonzalez, C - González, Benito A. - Saucedo, Cristián - Alvarado Orellana, Sergio A. - Gabella, Juan P. - Arnello, AlejandraType: ArticleIn: The journal of raptor researchVolume: 38Series:Issue: 2Date: 2004Page Range: 186--189Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: