Ключевые слова: animal, animals, beak, beauty bird, birding, birds, birdwatching, bizarre, black, black cock, black grouse, bog, capercaillie, cock, curiosity, early, endangered, eyebrow, fauna, feather, forest, game, gorgeous, grouse, head, hunt, large, lek, lekking, male, mating call, mating season, morning, nature, open, ornithology, portrait, russia, season specific, species, spring, spring nature, spring sunrise, sunrise, tetrao, tetrao tetrix, tetrix, wild, wilderness, wildlife,