Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)
Larus cachinnans 3CY 4P44 October 25 2006, Mur de Lixhe, Belgium. Picture: Charly Farinelle.
Green 4P44 and metal DN16475. Bird ringed as pullus on May 09 2004 at Wisla Wloclawek Tama, Poland.
Note immature patterns on lower tertials and on several greater coverts. Also much black on the bill and relatively small white tips to primaries. Dark iris.