Gulls in NW Europe
(last update: September 25, 2011
Herring Gull 1cy 6.166.610 (argenteus), October 26 2011, Leiden, the Netherlands. Pictures: Maarten van Kleinwee.
Ringed as juvenile on July 03 2010 at Europoort - Rotterdam, The Netherlands.
First-calendar year European Herring Gull, moulting to first-winter plumage (first prebasic moult). Some mantle feathers and upper scapulars have been replaced for second-generation feathers.
