Barrow's goldeneye (Bucephala islandica) is a medium-sized sea duck of the genus Bucephala, the goldeneyes. This bird was named after Sir John Barrow. The genus name is derived from Ancient Greek boukephalos, "bullheaded", from bous, "bull " and kephale, "head", a reference to the bulbous head shape of the bufflehead. The species name islandica means Iceland. In Icelandic the bird is known as húsönd (house-duck); it is a common species of the Lake Mývatn in the north of the country. Average Weight: Male 2.13 lbs., Female 1.31 lbs.Average Length: Male 19.2", Female 17"