Lesser Black-backed Gull graellsii EA11 7cy, April 22 2002, Missouriweg - ECT, Maasvlakte, the Netherlands (51.59N,04.02E).
An adult ringed, left orange EA11 as a pullus on the nest July 8 1996. The white mirror on p10 almost merges with the white tip along the shaft. The primary tips look pretty fresh. In the wing-coverts and the scapulars, most feathers are very neat and tidy and don't show a moult gap of shed feathers.