Ключевые слова: alertness, animal, avian, beak, bird, birdwatching, black, black bird, black raven, branch, claw, corvus, corvus corax, crow, dangerous, dark, death, evil, eye, fantasy, fauna, fear, feather, flying, freedom, gothic, grey, halloween, horror, isolated, looking, majestic, mystery, mystic, nature, park, portrait, predator, profile, raven, scary, sinister, sitting, sky, spooky, tree, watching, wild, wildlife, wing,