Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)
Larus cachinnans 2CY PAEN January 06 2010, Vienna, Austria. Picture: Wolfgang Schweighofer.
Yellow PAEN and metal PLG DN-25346; ringed as pullus on May 21 2009, at Jankowice Babice Malopolskie Poland (50,03333 19,46667).
Post-juvenile moult included: inner GC, inner MC, inner LLC, and several of the inner LC.