Gulls in NW Europe
(last update: September 25, 2011
Herring Gull adult (argenteus) Y.AHY October 09 2009, IJmuiden, the Netherlands. Pictures: Ruud Altenburg.
Bird ringed as breeding adult on the nest on 11 May 2009 at IJmuiden, the Netherlands. P1-P7 new; no old primaries.
