La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Phenology and ecology of the Great White Egret (Casmerodius albus) in the lowlands of the rivers Nuthe and Nieplitz, Brandenburg, 1995 to 2005.
Auteurs :	Lothar Kalbe, Auteur
Type de document :	Article
Dans :	Vogelwarte (44(3) AUG 2006)
Article en page(s) :	177-182
Langues:	Allemand
Résumé :	Great White Egrets are observed frequently in Brandenburg since 1995. The species established a night roost in the Nuthe-Nieplitz-Lowlands in dead alders with more than twenty birds, especially between September and November. Records also exist from all other months. Several observations of adults in breeding plumage were made, but broods were not recorded. The next known breeding site is located in the Warthebruch, Poland, about 150 km ENE. In the Nuthe-Nieplitz-Lowlands the Great White Egret prefers shallow waters with a high density of food. The tendency to winter increased since 2001. In the severe winter 2005/2006 up to sixteen birds roosted for the night in the estuary of the river Nieplitz where broad reedbeds and a largely ice-free area is provided. In this time the birds used meadows for foraging most probably on voles.

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