Second winter Kumlien's Gull(?), Milltown, Dingle Harbour, 31st December 2011 (Seamus Enright).
The Kumlien's Gull(?) (left), compared with a nearby Iceland Gull, Milltown, Dingle Harbour, 31st December 2011 (Seamus Enright). Also present was an adult Iceland Gull, the above first-winter Iceland Gull and a first-winter Glaucous Gull.
UPDATE: 2nd January 2011. There's been debate over the exact sub-specific identity of this bird and it seems to be in the overlap zone of Iceland and Kumlien's Gull, probably best left as 'Kumlien's/Iceland Gull' for the moment.