Ключевые слова: acrobatic, animal, avian, barn, beak, bill, bird, black, blue, branch, calm, creature, eat, fauna, feather, feathers, feed, fence, flight, fly, gracile, gradient, green, hirundo, insects, leaves, natural, nature, nobody, orange, outdoors, perch, rest, rustica, serene, silhouette, singer, sky, song, square, sunset, swallow, tail, tree, wild, wildlife, wings, wire, woods, young,