La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Winter diet of the Great Grey Shrike Lanius excubitor on Ptujsko polje (NE Slovenia)
Auteurs :	Dominik Bombek, Auteur
Type de document :	Article
Dans :	Acrocephalus (23(113-14) 2002)
Article en page(s) :	135-138
Résumé :	The author presents the analysis of 76 pellets of the Great Grey Shrike Lanius excubitor collected during the winter period (January - March) in 2002 in the area of Ptujsko polje (NE Slovenia). The highest proportion of the pellets (86%) contained remains of voles, the greatest part of which went to the Common Vole Microtus arvalis (72%). The Great Grey Shrike also fed on cadaver of the Brown Hare Lepus europaeus. Three pellets contained insect remains as well, apart from those of small mammals. There were no remains of birds. The Great Grey Shrike tears a small mammal apart and eats it in parts, which is the reason why its pellets never contain the preys entire skeleton. It usually devours the front part of the body together with the head (53%), its next meal containing the rear part of the body (47%); it disgorges them separately. The studied pellets were by 10-20% smaller than those from comparable studies made elsewhere in Europe.

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