Ключевые слова: animal, background, beak, beautiful, bird, birding, birdwatching, black, blackgame, bog, breeding, cock, cold, early, environment, eyebrow, fauna, feather, forest, game, gorgeous, ground, grouse, land, lek, lekking, lyrurus, male, mating, morning, nature, open, ornithology, playing, plumage, portrait, russia, season, single, specific, spring, springtime, sunrise, tetrao, tetrix, wild, wilderness, wildlife, wing, winter,