The BLACK COCK (_Lyrurus tetrix_) is principally of a rich black, relieved upon the head, throat, and lower back with a magnificent steel-blue sheen; the wings are enlivened by bands of pure white, the feathers on the lower tail-covers are also of snowy whiteness; the eye is brown, the pupil blueish black, and the beak black; the toes are greyish brown, the eye brown, and a bare patch around the eye bright red. In the female the prevailing colour of the plumage is a mixture of rusty yellow and rusty brown, marked with transverse stripes and spots of black. The length of the male is nearly two feet, and its breadth over three feet; the length of the wing is twelve inches, and that of the tail seven inches. The female is six inches shorter and nine inches narrower than her mate. The young in their first plumage resemble their mother; but in the first moult the black feathers of the young males appear about the sides and breast. [Illustration: THE BLACK COCK (_Lyrurus tetrix_).] The Black Cock is generally distributed over the European continent, being found in Germany, Holland, France, and, according to Savi, in Italy. In the north, it is met with in Scandinavia, Russia, Siberia, and Lapland. It is said at one time to have been frequent in Ireland, but has long since disappeared. In England it is met with on heathy hills and forest districts, becoming more plentiful toward the borders of Scotland, and is found in considerable abundance in the mountainous and wooded parts of that country. Its favourite haunts are the low slopes of hills, in which brushwood and coppice alternate with heather and fern, and rocky, well-wooded glens. In spring and summer its food consists of leaf-buds, the tops of heather, berries of various plants growing among the heath, insects, larvæ, and sometimes corn and seeds from the neighbouring fields. In winter this supply is diminished to the tender tops of shoots of birch, fir, and heath, and vaccinia and juniper berries. In spring and summer, these birds live apart in families, but in the autumn and winter remain together in flocks, which, when snow is on the ground, roam from place to place in search of food.