Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)
Larus cachinnans 2CY 467P December 24 2009, Wörth, Austria. Picture: Wolfgang Schweighofer.
Bird ringed as pullus on May 22 2008 at Jankowice Babice Malopolskie, Poland. Probably female.
Fresh coverts have been replaced in partial autumn moult, still with some transversal bars, but now grey-based, looking more mature.