Larus cachinnans

(last update: February 16, 2013)

Coordinator:
Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)

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cachinnans plumages

Larus cachinnans 1P24 sub-adult, May 15 2013, Wytyckie Lake - Urszulin, Poland. Picture: Łukasz Bednarz ringing team.

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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. Sub-adult, with some black on primary coverts, probably 5CY. Dense speckling in iris. Orange-red orbital ring and gape. No red on upper mandible; faint black on the upper and black on the lower mandible. Pale yellow legs.
Deep white tongue on P10 (combined with full sub-terminal band), and broad band on P5; no black spot on P4. P1 dropped; PMS=1.