La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	[Night-roost census of Hooded Crow Corvus cornix near Den Haag in 1974.] (2001)
Auteurs :	Peter L. Meininger, Auteur ; Wim J. ter Keurs, Auteur
Type de document :	Article
Dans :	Limosa (74(2) 2001)
Article en page(s) :	66-68
Résumé :	This note summarises the results of an old census of a night-roost of Corvidae in the Duivenvoordse-Veenzijdse Polder, between Den Haag and Leiden, Province Zuid-Holland, on 2 February 1974. It focuses on the number of Hooded Crows Corvus cornix (629-644 individuals), after Jackdaw C. monedula (>3500 individuals) the most abundant corvid using the roost. By the end of the 20th century, Hooded Crow has completely disappeared as a winter visitor from the region, and is only occasionally observed during migration.

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