From Birdguides (& backed up by photos from today on there:
Adult Kumlien's Gull, 2nd-winter Ring-billed Gull, 2 Iceland Gulls (i.e a new one, not sure of age), & 4 Glaucous Gulls (adult-type, 3 juvs, i.e. a new juv).
In a word, wow.
And in response to Kathy's kind offer, stick the kettle on!