2nd winter Larus delawarensis

The 2cy Larus delawarensis stayed the all summer in Almada area, and regularly roosting at an urban park, now on its 2nd winter plumage, with P10 fully grown and already showing small mirrors and no trace of black on tailfeathers.
Last April, at the same location  http://gullsinlusitania.blogspot.pt/2012/04/1-st-winter-larus-delawarensis.html