Steller’s Eider — Somateria Stelleri (Pallas)
This is an Arctic species, nesting sparingly in Europe and more commonly on the tundras of Eastern Siberia. It is not very rare on the coast of Norway in winter, where many migrate westwards. Two examples only have been obtained in Great Britain.
It is the smallest of our Eiders. The male has the head white, with a bluish black patch across the occiput and on the chin. The rest of the upper parts are bluish black, except the falcate secondaries, which are striped with white. Under parts rufous chestnut. The female, except in size, is very like the Common Eider, but darker. Length 18 in.; wing 8·5 in.