4cy Caspian Gull / Larus cachinnans, Barneveld - Landfill (The Netherlands) on 28 January 2011
Ringcode: V.455, ringed as 1cy on 16 November 2008 in Enghaveparken, KÝbenhavn (Denmark) Caught and ringed as 1cy in 2008 in Denmark, in 2009 seen in Harderwijk and now at the dump of Barneveld. The dull yellowish bill become adult-like with traces of red on the gonys. Some wing coverts shows brown immature markings. On the flight pictures note the dark markings in the rectrices. The alula feathers and greater primary coverts are well dark brown marked. Unlike adult Caspian Gulls the top of p10 is not complete white but the mirror is separated by a black subterminal band. And also there is a small mirror on p9.