King Eider is a sea duck found along the coast throughout
the Arctic Ocean. Breeding on arctic shores, it moves
slightly south of the arctic circle in winter.
Eider down. Bizarrely, their scientific name is S. spectabilis, which one might
expect to refer to the Spectacled Eider (S. fischeri).
The strange face shield could look like spectacles.
Unfortunately, I don't yet have a photo of the male in full
breeding plumage, with bright yellow face shield, red bill,
green face, soft grey head and delicate pink chest. These
are in transition.
The female is similar to the female Common Eider, a large brown striped duck, but she has
a less-sloping face and a different bill.