Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)
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.