Black grouse is also called kosach or field grouse. This bird from the pheasant family is widespread in the forest-steppe and forest zone of Eurasia. They lead a sedentary or nomadic way of living, settle along the outskirts of forests, on the edges, in the valleys of forest rivers.
The grouse is a relatively large bird with a small head and short beak. Males are usually larger than females and can reach 40-50 cm in length, and weigh 1.0-1.5 kg. They are easily recognizable by their shiny black plumage with a greenish-purple tint on the head, craw, neck and loins, as well as bright red eyebrows. Females are distinguished by variegated flowers with black-brown, dark yellow and gray transverse stripes.
Basically, the black grouse is a land bird. But in the cold season, he can spend a lot of time on tree branches, obtaining food for himself. These birds walk on the ground in the same way as a chicken. They are able to run quickly and take off sharply almost vertically when danger approaches. A favorite place for these animals is the birch grove, as there are many birch buds – a useful and nutritious delicacy.