The Mediterranean Gull is slightly larger and more robust than the Black-headed Gull, with a larger head and a thicker blood-red bill. In spring adults appear white with a black hood (the Black-headed Gull has a chocolate brown hood), as the back and wings are pale grey and wing-tips are white. Adults have a complete moult between June and September and then have a partial moult to acquire their black hood between February and April.
In Britain this gull often mixes with Black-headed Gulls and sometimes breeds with that species. There are over 60 pairs that breed in this country at over 27 locations, mostly in the south and is specially protected. In world terms this is a rare gull with a very restricted distribution, with 99% of the world population being found in the former USSR.
Digiscoped using Lumix FS15 and Kowa TSN-883 x30