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By: Zuberogoitia Arroyo, Iñigo - Martinez, Jose Antonio - Azkona, Ainara - Iraeta, A - Castillo, Iñaki - Alonso, Raúl. - Hidalgo, SType: ArticleIn: The journal of raptor researchVolume: 37Series:Issue: 4Date: 2003Page Range: 342--344Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Zuberogoitia Arroyo, Iñigo - Martinez, Jose Antonio - Zabala, Jabi - Martinez, Jose EnriqueType: ArticleIn: The journal of raptor researchVolume: 39Series:Issue: 2Date: 2005Page Range: 156--159Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: