Ключевые слова: adult, aggressive, animals, avian, beak, birding, birds, black, capercaillie, closeup, cock, courting, europe, eye, fauna, feathers, forest, habitat, instinct, lek, lekking, life, male, mating, natural, nature, one, ornithology, outdoors, plumage, portrait, red, seasons, sitting, snow, spring, tetrao, tetrao urogallus, urogallus, western, western capercaillie, white, wild, wilderness, wildlife, wings, winter, wood grouse, woods,