Larus cachinnans

(last update: February 16, 2013)

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

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cachinnans plumages

Larus cachinnans 2CY-5CY 103P May 2007 - August 2010, Lubna, Poland. Picture: Michal Rycak & Ruud Altenburg.

Bird ringed as pullus green 103P and metal DN13874 on June 06 2006 at Jankowice Babice Malopolskie, S. Poland (50,03 19,47).

below: 2CY 103P May 23 2007, Lubna, Poland. Picture: Ruud Altenburg.

Classic cachinnans jizz: elongated bird with long legs, parallel bill and sloped head. Bird in active complete moult: most MC and LLC missing, the feathers in these tracts that are still present here probably are 2nd gen feathers replaced in the post-juvenile moult, now skipt and will be replaced later in the process.

below: 3CY 103P January 02 2008, Lubna, Poland. Picture: Michal Rycak.

Note small mirror on 2nd gen P10.

below: 3CY 103P August 06 2008, Lubna, Poland. Picture: Michal Rycak.

Bird in active complete moult: new central primaries show obvious white tips.

below: 5CY 103P August 18 2010, Lubna, Poland. Picture: Michal Rycak.

Note pale iris and parallel bill.