Cassell's book of birds; vol. 3

by Alfred Edmund Brehm

THE CAPERCALI (Tetrao urogallus).

THE BLACK COCK.

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.

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.

"Unlike the Capercali, which mostly roosts in trees," says Mr. Lloyd, "the Black Cock almost invariably passes the night on the ground, and in the winter, more especially if the cold be intense, it not seldom buries itself in the snow." Nilsson indeed supposes that the bird only makes a hollow in the snow and allows itself to be covered by the falling flakes; but Mr. Lloyd assures us that the bird makes a regular burrow for itself, the depth depending, it is generally believed, on the mildness or severity of the weather. "Scores of times," he says, "when crossing glades and other openings in the forest, where the surface of the snow, to the casual observer, appeared to be as smooth as glass, one or more Black Cocks have suddenly emerged from beneath the snow, almost at my feet, and when expecting every moment others to follow I have carefully looked about me, I never could discover anything beyond the slightest indentation in the snow where the bird had burrowed, the hole itself being filled up by the sides collapsing; and yet perhaps within the next minute half a score of Black Cocks would fly up all around me. That their heads were above the surface previously to their leaving the snow I hold to be impossible, nor can I conceive that even their beaks protruded as others will have it. If air be needful to birds when thus imbedded in the snow, their beak no doubt forms an imperceptible orifice, through which they are enabled to respire."

In addition to his own experiences in the matter, Mr. Lloyd quotes the observations of the amusing though sometimes "marvel-relating" Bishop Oppidam: "In the winter-time the Black Grouse take care of themselves in this manner: they first fill their craw with as much food as it will hold, till it hangs like a bag under their necks, whereby they are provided for something to live on for some time; then they will drop themselves down into the soft snow and do not stay in their first hole, but undermine and burrow in the snow some fathoms from it; and there they make a small opening for their bills, and thus be warm and comfortable."

In the warm days of early spring these birds resort to their pairing ground, for unless they have been disturbed, they frequent the same place year after year. "The places selected at such seasons," says Sir W. Jardine, "are generally elevations, such as the turf enclosure of a former sheep-fold, which has been disused and is now grown over, or some of those beautiful spots of fresh and grassy pasture, which are well known to the inhabitants of a pastoral district. Here, after perhaps many battles have been fought and rivals vanquished, the noble, full-dressed Black Cock takes his stand, commencing at the first dawn of day, and where game is abundant, the hill on every side repeats his humming call; he struts round the spots selected, trailing his wings, inflating his throat and neck, and puffing up the plumage of these parts and the now brilliant wattle above the eyes, raising and expanding his tail and displaying the beautifully contrasting white under tail-covers." (See engraving, p. [185].)