Ключевые слова: animal, arena, background, beak, bird, birding, birdwatching, bizarre, black, breath, call, cock, early, endangered, eyebrow, fauna, feather, forest, game, grouse, head, large, lek, leking, lekking, leksite, male, mating, morning, nature, ornithology, playing, portrait, red, russia, season, species, spring, steam, sunny, sunrise, tetrao, tetrix, wetland, wild, wilderness, wildlife,