Larus cachinnans

(last update: February 16, 2013)

Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)


cachinnans plumages

Larus cachinnans 1P02 sub-adult, May 14 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 markings on primary coverts, probably 4CY or 5CY. Dense speckling in iris. Red orbital ring and gape. No red on upper mandible; black on the upper and faint black on the lower mandible. Pale yellow legs.
No deep white tongue on P10 (but may change when bird gets adult), and broad band on P5; black mark on P4. P1-P2 dropped, P1 growing, PMS=3.