Great Black-backed Gull Larus marinus - 1st winter, 2nd calendar year
Photographed at Portland Marina, Dorset, UK on January 14th 2013
OK, so here we have a few plumage details filled in - and some more to go on the coverts...
NB I do hope to incorporate a comments form here on the blog. I now recall removing the code from my blog template when I used it for a work project... if anyone reading is willing to check out my template, and restore it, I would be most grateful. Thank you.