A much brighter day but very quiet avian wise.
8.00-09.30 from the fishing boats with DW:
Grey Goose sp: 44S (I thought probably Pink-footed Geese)
Eider: 1W
Common Scoter: 2W
Great Northern Diver: 1W
Red-throated Diver: 37W    5E     2on
Great-crested Grebe: 52 around
Gannet: 56W
Merlin: 1 around
Cormorant: 57W
Oystercatcher: 1W
Mediterranean Gull: 1W   1E
Kittiwake: 1W
Guillemot: 3W.  1E  2on
Auk sp: 8W
Skylark: 1 out
Harbour Porpoise: 1
Grey Seal: 2
Common Seal: 2
After getting some domestic stuff done I went back to the fishing boats early afternoon but very little was seen.

adult and a 2w Caspian Gull 

On the reserve late afternoon with DW et al at least 6 Caspian Gulls came in, 1 x 1w, 3 x 2w, 1 x 3w & a fine looking adult.