Ключевые слова: abstract, angle, animal, animals, backgrounds, bird, birds, blue, cable, clear, communication, copy, electrical, electricity, equipment, flock, flying, group, large, line, low, nature, nobody, outdoors, parallel, perching, power, pylon, resting, row, silhouette, sitting, sky, songbird, space, starling, summer, sunny, swallow, technology, telephone, view, wire,