Ключевые слова: air, animal, animal image, background, beak, beautiful, bird, blue, circus, circus aeruginosus, colorful, eagle, environment, feather, feathers, flight, fly, flying, frontal, gray, harrier, hawk, hover, hunting, landscape, male, marsh, marsh harrier, national, natural, nature, northern harrier, ocean, ornithology, outdoors, predator, pretty, prey, raptor, sky, summer, swamp harrier, view, western, white, wild, wildlife, young,