Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)
Larus cachinnans 1CY PATL November 21 2009, Lubna, Poland. Picture: Michal Rycak.
Yellow PATL; ringed as pullus on May 21 2009, at Jankowice Babice Malopolskie Poland (50,03333 19,46667).
Dark on the inner primaries. GC2 replaced, other coverts and tertials still juvenile.