Ключевые слова: background, bird, birding, birdwatching, black, black grouse, blackcock, blackgame, bog, cock, eurasian black grouse, fauna, feather, finland, forest, game, gorgeous, grouse, lek, lekking, lyrurus tetrix, male, marshland, mating, mating season, morning, nature, northern black grouse, ornithology, playing, plumage, portrait, red, season, spring, springtime, sunrise, sweden, tetrao, tetrao tetrix, tetrix, wetland, wild, wildlife,