Ключевые слова: action, background, baltic, bird, birding, birdwatching, black, black grouse, call, calling, cock, early, environment, estonia, eyebrow, fauna, feather, game, gorgeous, grouse, hunt, lek, lekking, lekking black grouse, lyrurus tetrix, male, mating, morning, nature, open, ornithology, playing, portrait, saaremaa, season, spring, springtime, sunrise, swamp, tetrao, tetrao tetrix, tetrix, wetland, wild, wilderness, wildlife,