Ключевые слова: animal, aves, balcony, beak, bird, birds, birdwatching, black, blue, dark, europe, european, feather, feathers, garden, gray, great tit, green, metal, nature, olive, ornithology, outdoor, park, parus major, passerine, plumage, railing, stripe, switzerland, tit, white, wildlife, wing, winter, wood, yellow,