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By: Ojeda, Valeria - Gelain, Mariano - Sympson, Lorenzo - Trejo, AnaType: ArticleIn: Revista chilena de historia naturalVolume:Series:Issue:Date: 2003-09-01Page Range:Publication Info:Subjects:
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By: Trejo, Ana - Ojeda, V - Sympson, L - Gelain, MarianoType: ArticleIn: The journal of raptor researchVolume: 38Series:Issue: 1Date: 2004Page Range: 1--8Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: