There are four types of eiders in North America. The Common Eider, the largest in the group, has the largest range,and is seen across the North and on the east and west coastlines. The King Eider is also seen across the North and on the two coastlines in the winter months. The Spectacled Eider and the Steller's Eider are eiders seen only in the north-western regions of Canada and around the coast of Alaska.
Eiders adapt to the arctic regions and cold waters they live in, having very fine plumage, known as eider down. These birds have some of the most colourful and contrasting plumage of all the birds in North America. Identified by their large bills, the King Eider has the most unusual look with an enlarged bill in its breeding season.