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Common Scoter - Melanitta nigra - male. L 44-54cm. Male is our only all-black duck. Rather long tail is sometimes raised when swimming. Gregarious outside breeding season. In flight, looks mainly dark but paler flight feathers can sometimes be seen. Sexes are dissimilar. Adult male has uniformly black plumage. Head sheen only visible at close range. Bill is mostly dark but with yellow ridge; base is bulbous base. 1st winter male has browner plumage are all-dark bill. Adult female has mainly dark brown plumage with pale buff cheeks. Juvenile resembles aadult female. Voice Mostly silent. Status Rare breeding bird, found on vegetated N lakes and lochs. Locally fairly common in winter, found on coasts with sandy seabeds.