Ice in snow

Iceland Gull - 3rd W present at the waterfall in heavyish snowfall at about 0950 at least
Pale-bellied Brent Goose - two feeding on skeer off the horse paddocks - apparently eating this stuff - more on this later:

Not sure whether this is eelgrass or something like cladophora cupestris - we'll find out!
Med Gull - adult horse paddock beach
Chough - no sign in what were snowfields with little or no feeding opportunity - hard to see on beach unless walk along