Mediterranean Gull 8AJ adult, August 10 2004, Le Portel /Boulogne-sur-Mer, France (50.42N,1.34E).

This individual shows white outer primaries with just a black streak along the outer-web, adult all white-grey plumage and black patches on the head. Typical adult bare part coloration: Iris dark brown, the red orbital ring turns brownish, the bill is red with a black bill-band. The legs are dull reddish.
From late summer to September, a complete moult takes place, bringing birds into so-called "adult winter" plumage. After the complete moult, birds show a blackish mask behind the eye. The mantle, scapulars, tertials and all the wing-coverts have been replaced for plain pale grey feathers. 
The secondaries are completely white. The new adult primaries are shiny pearly-grey, flashing white at a distance. There is a black line along the outer-web of P10 (and sometimes on P9 as well). Secondaries, under-wing and tail are completely white.

Ring readings:

• 8AJ Right as >3CY (metal: BLB E..900233) on June 30 2001 at Rijkevorsel, Antwerpen, BELGIUM (51,21N 04,46E), originally ringed as pullus white 11E at Markiezaat, the Netherlands (51,27N 04,15E), June 18 1991.
• 26/06/91  Markiezaat, NETHERLANDS  51,27N 4,15E RING 11E
• 02/08/91  Le Portel, Pas-de-Calais, FRANCE  50,42N 1,34E
• | 7x
• 16/09/96  Le Portel, Pas-de-Calais, FRANCE  50,42N 1,34E
• 30/06/01  Rijkevorsel, Antwerpen, BELGIUM  51,21N 04,46E RERINGED 8AJ
• | 4x
• 25/05/02  Zandvlietsluis (new colony), Antwerpen, BELGIUM  51,2N 4,17E
• 30/07/02  Le Portel, Pas-de-Calais, FRANCE  50,42N 1,34E
• | 4x
• 18/10/02  Le Portel, Pas-de-Calais, FRANCE  50,42N 1,34E
• 30/03/03  Zandvlietsluis (new colony), Antwerpen, BELGIUM  51,2N 4,17E
• 04/08/03  Le Portel, Pas-de-Calais, FRANCE  50,42N 1,34E
• | 1x
• 09/08/03  Le Portel, Pas-de-Calais, FRANCE  50,42N 1,34E