Head and neck, white with brownish grey cheeks, and below, on each side of the neck, an oval patch of dark brown; back, rump, and tail-feathers blackish; long scapulars, inner secondaries, short outside tail-feathers, belly, and flanks white; breast, wing-coverts, and primaries brownish black; bill, rose-colour in the middle, base and tip black; irides yellow or red; legs and feet pale lead-colour. Length, twenty-six inches. _Female_: brown; stripe above the eye and lower parts white. * * * * * The long-tailed duck has the most elegant figure of the sea and diving ducks, if we except the mergansers, and although not so richly coloured as some species, is a beautiful bird in its white and brown plumage, bright red irides, and rose-coloured bill. During its winter sojourn on our coasts it is exclusively marine in its habits. To the south and east coasts its visits are irregular; on the west coast of Scotland and in the Hebrides it is common; in Ireland it is restricted to the north coast. It is more arctic in its distribution than any other duck, and in summer is only to be met with north of the limit of forest growth. In its summer haunts it goes inland to breed, and Seebohm says: ‘Probably the explanation of its almost exclusive attachment to salt water in winter is to be found in the fact that it rarely winters in a climate where all the fresh water is not frozen up.’ A charming account is given by the same author of the habits of the long-tailed duck in its summer home in the Siberian tundra--a vast level region of swamps and lakes, gay with bright-tinted moss and lichen, and brilliantly-coloured arctic flowers. The ducks were abundant and very tame, in strange contrast to their excessively shy and wary disposition on our coasts. The smaller lakes were inhabited by single pairs, the larger sheets of water by several pairs. Each pair appeared to be very jealous of any invasion of its breeding-grounds, and severe battles were frequent between the males. The call of the drake was very peculiar, and often heard, and was a loud, clear cry of three syllables, the middle one prolonged and strongly accented. In its summer haunts it feeds on water-plants. The drake does not leave his mate after the eggs have all been laid, but assists in incubation and in protecting the young. The nest is a slight hollow in the ground with down for lining; the eggs are pale buffish green in colour. Mr. Abel Chapman says that, like other sea-ducks, this species gets its food by diving, but is not a bottom-feeder like the eider and scaup, which cannot feed in water more than two or three fathoms deep. The long-tail feeds on small marine animals floating in the water, and is hence able to feed in deep as well as shallow seas at a distance from land. Eider Duck. Somateria mollisima. [Illustration: FIG. 84.--EIDER DUCK. ¹⁄₁₀ natural size.]