Ключевые слова: alone, american crow, animal, avian, beak, bird, birdwatching, black, blackbird, blue, carrion crow, chihuahuan, chihuahuan raven, clever, cloud, clouds, cloudy, common raven, corvid, corvidae, corvus, crow, crow silhouette, dark, ecology, environment, fauna, feather, feathers, flight, flying, hunt, nature, ornithology, outdoors, passerine, raven, sky, smart, solo, stalk, wildlife, wings, wingspan,