The Capercaillie — Tetrao Urogallus, Linnæus
Although originally an inhabitant of Great Britain, this species became extinct over a hundred years ago from causes which are by no means clear. In 1837 it was introduced into Perthshire and a few other districts in Scotland, where it has increased largely, and is at the present time gradually spreading southwards through the pine, oak, and birch forests.
It is essentially a forest-haunting species, rarely, if ever, wandering far from the woods, where its call of “peller, peller, peller,” may be continually heard during the spring months, and sometimes again in autumn.
Like most game birds, it is polygamous, and an old cock is very jealous of his hens, savagely attacking other males that come near him. When courting he performs various evolutions, drooping his wings and erecting his tail, and calling out vigorously at the same time. Their food consists chiefly of various seeds and berries, and in their season the tender shoots of the Scotch fir.
The nest is merely a “scrape” in the ground, generally at the foot of a tree, and the eggs, some twelve in number, are reddish brown spotted and blotched, with darker shades of the same colour. The young feed largely on insects and worms, and are especially fond of ants. The male takes no part in the incubation or tending of the young.
The male is very dark grey on the upper parts, breast glossy green, and the remainder of the under parts black. The feathers of the chin and throat are elongated. Length 36 in.; wing 16 in.
The female, who is much smaller, is brownish all over, mottled and barred with buff and white. Length about 26 in.