Ключевые слова: animal, arena, background, bird, birding, birdwatching, black, blackgame, bog, breeding, call, cock, early, environment, fauna, forest, game, gorgeous, ground, grouse, land, lek, leking, lekking, lyrurus, male, mating, morning, nature, ornithology, playing, plumage, portrait, red, russia, season, specific, spring, springtime, sunrise, tetrao, tetrix, wild, wilderness, wildlife,