Iceland Gull

Larus glaucoides

It doesn't nest in Iceland. It breeds in Arctic Canada and Greenland and visits Iceland only in winter. Its scientific name, glaucoides, means 'like the Glaucous Gull,' its bigger look-alike.

Larus is Latin for a gull or large seabird. Glaucoides adds the Greek -oides, 'resembling,' to glaucus, an old name for the Glaucous Gull.