Ключевые слова: aggressive, animal, animalia, aves, bill, bird, birdwatching, black, blue, blue jay, body, bold, call, calling, color, colorful, corvid, corvidae, crest, crested, cristata, cyanocitta, cyanocitta cristata, environment, eye, fauna, feather, feathered, flight, fly, flying, gaze, gazing, grass, grassy, gray, green, grey, head, intelligence, intelligent, jay, jaybird, look, looking, migrate, migration, migratory, monogamous, nature, one, ornithology, outdoor, outside, passeriformes, passerine, plumage, profile, sidal, side, sing, singing, song, songbird, straw, structural coloration, subspecies, tail feather, tailfeather, vegetation, vibrant, white, wild, wilderness, wildlife, wing, winged, yellow,