David O'Connor was kind enough to forward his photos of the 'Eastern' Common Gull, seen at Black Rock, on 6th March 2014. See the post below this one for a bit more on this (sub) species.
'Eastern' Common Gull, Black Rock, 6th March 2014 (David O'Connor).
'Eastern' Common Gull, Black Rock, 6th March 2014 (David O'Connor).
'Eastern' Common Gull, Black Rock, 6th March 2014 (David O'Connor).