Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)
Larus cachinnans 2CY PLET July 10 2013, Utrecht, the Netherlands. Picture: Frank vd Meer.
Yellow PLHK. Ringed as pullus on May 25 2012, at Kozielno, Paczkow, S-SW Poland, (50°28' N, 16°58' E).
Bird in complete moult: hard to see but probably P5/P9. Upper TT replaced, lower TT still juvenile. Moult gap in central GC. Several fresh scaps grey.