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By: Margalida, Antoni - Bertran, Joan.Type: ArticleIn: The journal of raptor researchVolume: 37Series:Issue: 3Date: 2003Page Range: 252--256Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Margalida, Antoni - Bertran, Joan.Type: ArticleIn: The journal of raptor researchVolume: 36Series:Issue: 2Date: 2002Page Range: 154--155Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Margalida, Antoni - Bertran, Joan.Type: ArticleIn: The journal of raptor researchVolume: 37Series:Issue: 2Date: 2003Page Range: 157--160Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Margalida, Antoni - Canut, Jordi - Garcia, DType: ArticleIn: The journal of raptor researchVolume: 37Series:Issue: 4Date: 2003Page Range: 333--337Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: