Barrow's Goldeneye: (Bucephala islandica)

These are usually found in smaller flocks than the Common Goldeneye. It feeds almost entirely on mollusks obtained by diving, but also takes an occasional snail, sea urchin, or marine worm. Their habitats are clear still lakes, fast streams and torrents in summer. Winter is spent along ice-free rivers and lakes, and in coastal waters and estuaries.