Here's a few things that caught my eye today
First-winter Caspian Gull- a new bird
Presumably a Lesser Black-backed x Herring Gull hybrid
3rd/4th winter bird- same as above (pic 2)
Presumably a Herring Gull from up north somewhere- pale tips to the primaries and frosty marbled coverts and rather washed out tertials. Some strange stuff can be coming from various populations from the north from places like Iceland, northern Europe and especially some strange goings on around the Baltic.
A juvenile gull with retarded scapular moult- almost a Lesser Black backed look to the coverts but tertials notched. The retarded moult suggests something from up north.
Something else, big, with retarded moult and a pallidness to it- presumably from up there.
Didn't really know what to conclude on this