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Wintertelling van de Canadese Gans, Branta canadensis in Vlaanderen (2007)
Anselin, A.; Cooleman, S. (2007). Wintertelling van de Canadese Gans, Branta canadensis in Vlaanderen (2007). Rapport van het Instituut voor Natuur- en Bosonderzoek, INBO.R.2007.9. Instituut voor Natuur- en Bosonderzoek: Brussel. 16 pp.
Part of: Rapporten van het Instituut voor Natuur- en Bosonderzoek. Instituut voor Natuur- en Bosonderzoek: Brussel. ISSN 1782-9054
Available in  Authors 
    Vlaams Instituut voor de Zee: Open access 147229 [ download pdf ]
Document type: Scientific report
Keywords
    Branta canadensis (Linnaeus, 1758) [WoRMS]
    Belgium, Flanders [Marine Regions]
    Marine/Coastal; Brackish water; Fresh water
Authors  Top 
  • Anselin, A.
  • Cooleman, S.
Abstract
    Since the winter of 1994/1995 the Canada Goose Branta canadensis, a feral species with a fast growing population, has been subject of a special project “Honker”which consists of yearly winter counts covering its whole distribution range in Flanders. This report presents the main results of the January 2007 count, which has been organised in co-operation with the NGO Natuurpunt vzw. We received data from 282 sites, collected by 115 volunteer field ornithologists. Coverage was high and in many regions special efforts have been made to accomplish this. A total of 8791 birds were counted. The highest numbers were seen in the valleys of the river Leie and Scheldt, and locally in the province of Antwerp (Kalmthoutse Heide, Hees at Hoogstraten and Mechels Broek). Compared to the results of the former count in 2004, group size is now significantly lower: only in 9 sites more than 200 birds were present. The largest group (439) was noted at the Mechels Broek. De species has recently become a frequent visitor of the coastal polders and the eastern province of Limburg. The present population is estimated at more than 9000 individuals.
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