Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)
Larus cachinnans 1CY & 2CY PLNE December 2012 & December 2013, the Netherlands. Picture: Lützen Portengen & Aart Vink.
Yellow PLNE and metal PLG DN-28930, ringed as pullus on May 25 2012, at Kozielno Paczkow Opolskie Poland (50,48333 16,96667).
BELOW: Larus cachinnans 2CY PLNE December 10 2013, Amerongen, the Netherlands. Picture: Aart Vink.
Note grey saddle and mirror on P10.
BELOW: Larus cachinnans 1CY PLNE December 11 2012, Oss, the Netherlands. Picture: Lützen Portengen.
Replaced coverts and upper tertials clearly different in pattern, with neat white fringes.