1cy Caspian Gull / Larus cachinnans, Westkapelle - sea dike (The Netherlands) on 25 October 2011
In every respect a very typical and beautiful 1cy Caspian Gull. This bird has replaced nearly all scapulars to second generation feathers, all other coverts are still juvenile. The coverts are white-edged and show hardly any barring. The median and especially the greater coverts have white tips. The under-wing coverts become very white coloured. The inner five primaries of the long wing have a pale inner and a dark outer web, in a spread wing creating a "Venetian blind", Also note the pale "apical spots" on the outer webs of P2-3.
From: Ies Meulmeester, Tuesday 29 November 2011, 21:32
Note the typical extensive narrow barring directly above the tail-band