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a large European woodland grouse, Tetrao urogallus, having a black plumage and fan-shaped tail in the male



(Tetrao urogallus), a bird of the family Tetraonidae, order Galliformes. The males weigh an average 4,100 g; females, 2,000 g. In males the top of the head, the neck, and the back are gray with dark markings, the wings are brown, the crop is black with a green metallic sheen, and the lower part of the body is dark with large white spots. The female’s plumage has dark and rusty ocher diagonal stripes. It is a sedentary bird, but sometimes performs seasonal migrations. It inhabits evergreen, mixed, and deciduous forests of Europe and Asia (in Siberia, it is found in the east as far as Western Transbaikalia, Olekminsk, and Viliuisk). The zone of distribution and the number of capercaillies has sharply diminished during the past two centuries; in some places they have disappeared. They were exterminated in Great Britain by the middle of the 18th century; in 1837 they were imported there from Sweden and acclimatized. In the USSR the capercaillie is retreating northward as forests are cut down; it has completely disappeared in a number of oblasts south of the forest zone (Kursk, Voronezh, and Tula, among others). It is polygamous.

The birds gather in the same mating places during the mating period year after year. They mate (March to May) on the ground and in trees; sometimes they mate summer, autumn, and even winter. The nest is on the ground, six to eight eggs to a clutch, rarely 12 to 16 eggs. Only the female sits, for a period of 25-28 days. Diet consists of shoots, flowers, buds, and berries in summer; the young eat insects and spiders. In the autumn, the capercaillie eats larch needles; in winter, pine and spruce needles and buds. It is the object of hunting for sport and, in some places, commercial hunting.


Kirikov, S. V. “Rod glukhari.” In Ptitsy Sovetskogo Soiuza, vol. 4. Edited by G. P. Dement’ev and N. A. Gladkov. Moscow, 1952.
Teplov, V. P. “Glukhar’ v Pechersko-Ylychskom zapovednike.” In Trudy Pechersko-Ylychskogo zapovednika, issue 4, part 1. Moscow, 1947.
Semenov-Tian-Shanskii, O. I. “Ekologiia teterevinykh ptits.” In Trudy Laplandskogo gosudarstvennogo zapovednika, issue 5. Moscow, 1960.


References in periodicals archive ?
Objectives: This LIFE Nature project will focus on maintaining favourable habitats and re-establishing the tranquillity necessary for the survival and development of the capercaillie, the most emblematic species of the Vosges forests and their biodiversity.
I don't think it would encourage people to go out hunting capercaillies.
Stourport began with an 11-4 defeat of Firebrands, having competed strongly against Capercaillies Saturday, losing 8-6 after on against Caper having performed below par in the 5-2 defeat by Beeston.
DEDICATED Wildlife lovers Andy and Lindsay CUTE This squirrel was snapped after a long wait in Rothiemurchus STANDOUT A ptarmigan seen on a cold, crisp winter day in Cairngorms National Park STRIKING Capercaillie and a red stag are among their best shots SEAL AWAY A grey seal seen at Burghead Harbour on the Moray coast ON THE HOOF This feral goat was seen in the Monadhliath mountains in Inverness-shire FACE OFF A bottlenose dolphin off Fortrose, and a red grouse seen near Tomatin OTT AND COLD This beautiful otter was snapped by the Howards on the Isle of Mull FURBALL White hare which was spied in the northern corries in Cairngorms National Park
They're also hoping for a fine summer, as capercaillies need warm, dry weather to breed.
The amazing courtship dance of capercaillies in a forest clearing on Speyside near Aviemore will be relayed by hidden cameras to the nearby RSPB centre at Boat of Garten.
They beat fellow Scots Capercaillies 9-6 in the final, having virtually sealed their win by scoring five times in the opening 14 minutes.