Iceland Gull

I think. Could be a glaucous gull. Any suggestions from those familiar with nearctic gull species welcome.

Another beautiful sunny day on the shores and cliffs of Marwick. I visited Sandy Geo to count the gulls again and then headed up to Marwick Head. One of the RSPB staff had noted that of the guillemots that are back on the cliffs in their hundreds, many more than usual seem to be of the 'bridled' type ie they wear a sort of pair of white spectacles. I got the shots and will count up the speccies vs the non-speccies.