UK Status: scarce to rare winter visitor
| ||A small, unmistakable white duck with a black face and a v-shaped black patch beneath the crest. The Back, wings and rump are dark grey to black; The breast is white, with two black lines on the sides that extend forward from the back. The hen is slightly smaller than the drake with a chestnut head,a white cheek patch and chin. The rest of the body is grey.|
Breeds beside lakes, pools and rivers in forest areas and in winter on larger freshwaters, including reservoirs and gravel-pits, estuaries and sometimes on sheltered seas.