La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Red Kite Milvus milvus kleptoparasitizing Great White Egret Casmerodius albus
Auteurs :	Volker Dierschke, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (135(1) 2014)
Article en page(s) :	45-46
Résumé :	In October 2014, a Red Kite successfully attacked a Great White Egret foraging on grassland in a group of 28 birds in northern Lower Saxony (Germany). The attack was continued after the egret took flight until it disgorged a prey item, most probably a vole. In late summer and autumn 2014, numbers of both species were above average on the 8.9 km(2) sized study plot of fields and grassland, indicating high prey abundance. Kleptoparasitism is not uncommon in Red Kites and mostly directed against other raptors. In the decribed case, the observed bird took the opportunity to steal prey from the in the meanwhile most common avian predator of voles in the study area.

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