Larus cachinnans

(last update: February 16, 2013)

Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)


cachinnans plumages

Larus cachinnans 3P63 sub-adult, April 30 2014, Wincentów - Lublin, Poland. Picture: Łukasz Bednarz ringing team.

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Breeding bird trapped at the nest. Sub-adult (probably 5CY) with dark centre on one greater primary covert.
Dense speckling in iris. Red orbital ring and gape. No red on upper mandible; black on the upper and lower mandible. Pink legs.
Deep white tongue on P10 creating thayeri pattern (medial band is broken, also on P9), broad band on P5; faint black line on P4.