Black Grouse (Lyrurus tetrix)
Black Grouse which belongs to family of forest hens lives in bright forests in high mountain range and in range of dwarf pine. It grows to about 50cm, female little less. It eats strawberry bushes, insects and needles of conifers. Female lay up to 10 eggs in may or june. Young ones hatch after 20 days or more.
Pictures:
Video: