La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Results of the winter censuses of waterbirds in Wallonie and Brussels area (Belgium) in 2009-2010
Auteurs :	Antoine Derouaux, Auteur ; Pierre Loly, Auteur ; Jean-Yves Paquet, Auteur ; Sebastien Leunen, Auteur ; Jean-Paul Jacob, Auteur
Type de document :	Article
Dans :	Aves (47(4) DEC 2010)
Article en page(s) :	213-228
Résumé :	The 2009-2010 winter was cold and snowy. It was notable for the number of ducks, geese and swans, which was above the ten-year average, and for below-average numbers of the other species. There were large numbers of Common Goldeneye Bucephala clangula, Gadwall Anas strepera, Mallard Anas platyrhynchos, and Common Pochard Aythya ferina. There were record numbers of Canada Goose Branta canadensis; the increase of this species continues. Numbers of roosting gulls were generally quite large, and greater than in the winter of 2008-2009. Roost counts suggest that the numbers of the Great Cormorant Phalacrocorax carbo have now stabilised at a lower level than at the time of their peak abundance in 2002-2003. This is especially true along the river Meuse, which seems no longer to be the optimal habitat that it was at that time.

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