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By: Garrido, José Rafael - Camiña Cardenal, Álvaro - Guinda, Mariangela - Egea, M A - Mouati, N - Godino, Alfonso - De La Rocha, J L PType: ArticleIn: The journal of raptor researchVolume: 39Series:Issue: 1Date: 2005Page Range: 70--74Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: