Ключевые слова: alertness, animal, avian, awe, background, beak, beautiful, beauty, beauty in nature, bird, birdwatching, blue, bright, canada, claws, color, colorful, conservation, cute, environment, eye, feather, feathers, fence, fluffy, fragility, green, iridescent, majestic, metallic, natural, nature, north america, ornithology, outdoor, perched, plumage, springtime, summer, swallow, tachycineta bicolor, tail, tree swallow, usa, white, wild, wild animal, wildlife, wing, wire,