Larus cachinnans

(last update: February 16, 2013)

Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)


cachinnans plumages

Larus cachinnans 1P61 adult, May 16 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, pushing the limits for cachinnans showing a clear iris, an obvious gonys angle and the combination of relatively broad medial band on P10 plus limited black in P5.
Adult, with no speckling in iris. Red orbital ring and gape. Faint red on upper mandible; no black on the upper and no black on the lower mandible. Yellow legs.
Moderate tongue size on P10, and broken black band on P5; no black spot on P4. P1 dropped; PMS=1.