Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)
Larus cachinnans 3P29 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 (connected with tip = thayeri pattern), and broken band on P5; no black on P4. Moderate speckling in iris. Red orbital ring and gape. Red on upper mandible as well. Pink-fleshy legs with obvious yellow hue; black on both mandibles.