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Keywords:April, Audubon, Center, Gibbon, Grus canadensis, Kearney, March, Nebraska, North America, Platte, Platte River, Rowe, Sanctuary, Spring, USA, abstract, art, bird, birds, blurr, blurred, central, crane, cranes, dark, dsafe, ecology, evening, flyway, great migration, highway, line, lines, mark, marker, markers, migrate, migration, movement, night, orange, park, parking, power, pull-off, pull-out, reserve, river, road, safety, sandhill, sandhill crane, see, seeing, sign, signs, silhouette, sky, sunset, visibility, visible, wildlife
