The gull roost was a long way out into Dale Bay today, more or less opposite Point House, just before Dale Fort. So I decided to drive up there and see how easy it was to view - the answer was pretty easy!
I quickly picked out the 2CY Ring-billed Gull which was helpfully at the end of the flock I started working from. Also an (the?) adult Yellow-legged Gull in amongst some Lesser Black-backs, and a total of 14 Mediterranean Gulls (11 adults, 1 3CY, 2 2CY) amongst the Common & Black-headed Gulls.