Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)
Larus cachinnans 1CY female UKK L-005756 December 23-24 2009, Wörth, Austria. Picture: Wolfgang Schweighofer.
Metal ring from Kiev, Ukraine, L-005756, cachinnans ringed as pullus on May 28 2009 in Lake Svityaz, Shatskiv Distr. Ukraine (51°30'00"N, 23°51'00"E). This is the most north eastern lake and probably visible from the border with Poland (with telescope at least).
1CY female Caspian Gull L-005756, few median coverts replaced in post-juvenile moult.