La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Barn Owl Tyto alba prey in Thessaly, and evaluation of Barn Owl diets throughout Greece
Auteurs :	Vasileios A. Bontzorlos, Auteur ; Salvador J. Peris, Auteur ; Cristos G. Vlachos, Auteur ; Dimitrios E. Bakaloudis, Auteur
Type de document :	Article
Dans :	Ardea (97(4) 2009)
Article en page(s) :	625-630
Résumé :	Diet composition of the Barn Owl Tyto alba was studied in agricultural landscapes in Thessaly, Greece, for 3 years (2003-05). A total of 852 Rattus spp. individuals were identified from 10 065 pellets, which accounted for 2.9% by frequency and 27.4% by biomass of 29 061 prey items. Rattus spp. were more numerous in Barn Owl pellets during winter months than in summer. We suggest that this difference was due to a shift in relative prey availability and an increased need for energy by the Barn Owl during the colder months. Comparisons between Thessaly and

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