Ключевые слова: animal, avian, background, barn, beak, beautiful, beauty, bird, birdwatching, black, blue, color, environment, europe, eyes, fauna, flight, fly, flying, freedom, green, head, hirundo, light, natural, nature, ornithology, outdoor, outdoors, over, perching, rustica, sitting, sky, small, spring, swallow, swift, white, wild, wildlife, wing, wings, wire, yellow,