Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)
Larus cachinnans 3P33 adult, April 25 2014, Wytyckie Lake - Urszulin, Poland. Picture: Łukasz Bednarz ringing team.
For 2012, breeding location of 150 pairs cachinnans, of which 54 adults ringed and 158 pulli in 2012 (pers comm. Łukasz Bednarz).
Breeding bird trapped at the nest. Adult, with deep white tongue on P10, and full band on P5; small black spot on P4. Moderate speckling in iris. Red orbital ring and gape. Obvious red on upper mandible; black on both mandibles. Pink-fleshy legs with yellow hue.