The evidence for this Duck having bred in Scotland, is neither reliable nor conclusive. The Golden-eye breeds throughout the Arctic and sub-Arctic regions of Europe, Asia, and America, up to the limits of the growth of trees: its winter range extends to the tropics. It retires to its northern summer haunts with the first signs of spring. The favourite breeding resorts of this Duck are tracts of more open forest country, where the woods are full of swamps and lakes, and the timber contains plenty of holes. The nest is usually made in a hollow tree, in a hole in the trunk, or in a hollow branch, sometimes as many as thirty feet from the ground; whilst the partiality of the bird for a tree near a waterfall, or running stream, has been noticed by more than one observer. The nest consists entirely of the down plucked from the female’s body. The ten or twelve eggs are laid in May or June, and are bright green in colour. The nest-hole is never made by the Duck itself. The peasants of Northern Scandinavia place hollow logs in suitable places on the tree-trunks, which the Golden-Eyes appear readily to avail themselves of, and from which the eggs and down are systematically taken. The young are conveyed to the ground, one by one, pressed between the female’s bill and her breast. The male is not known to assist in the task of incubation, but may possibly do so. LONG-TAILED DUCK. This beautiful and remarkably elegant species, the _Anas glacialis_ of Linnæus, and the _Fuligula_ or _Harelda glacialis_ of modern writers, is another winter visitor to the British seas. It is only of somewhat rare occurrence in our southern waters, but northwards, off the Scotch coasts, it becomes more frequent, and in certain localities—notably the Hebrides, and the Orkneys and Shetlands—even abundant. In the latter islands it is locally known as the “Calloo”; in other parts of Scotland the clear, gabbling cry of this Duck has been freely translated into the words “coal-an’-can’le-licht.” To many American gunners the bird is known as “Old Squaw,” from its oft-repeated cries. The male bird is singularly graceful in appearance, his long, black central tail feathers projecting five inches beyond the remaining white ones. The head and neck are white, but on either side, below the ears, is a dark brown circular patch; the gorget and the upper parts generally are black, against which, however, the long, elongated white scapulars are very conspicuous; the underparts, below the gorget, are white. The female is much less showy, the black parts in the male being dark brown in this sex, and the white parts are suffused with brown; the elongated scapulars are wanting. During exceptionally severe weather the Long-tailed Duck sometimes approaches our coasts in unusual numbers, and in districts where it is generally a scarce bird. This Duck is a late migrant, seldom reaching even our most northerly coasts before November. It returns north in April.