Ключевые слова: animal, ascent, beautiful bird, beautiful sunset, bird, calm, cygnus, cygnus columbianus, dainty, dawn, dusk, elegant bird, exquisite, feathers, fine bird, flight, flightshot, flying, fowl, graceful bird, gracious, heart, levitation, longnecked, love bird, migration, nature, ornithology, plumage, proud flight, red sunset, scenic, shapely, single, slender, soar, subtle, sun rise, sundown, sunset, swan, swanneck, tranquil bird, tundra swan, virgin bird, watching, water, whooper swan, wild, wildlife, zoology,