Gulls in NW Europe
(last update: September 25, 2011
Herring Gull 3cy x.xx6.407 (argenteus) September 23 2011, Westkapelle, the Netherlands. Pictures: Maarten van Kleinwee.
Ring reading not complete. Third-calendar year European Herring Gull moulting to third-winter (third-basic, third cycle) plumage. P8 fully grown, P9 at length of P5.
