Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Sandhill Cranes Spread Their Wings, Rest a Spell in US Midwest by Mike Kilen GIBBON, NEBRASKA -- One of the world's greatest migrations pauses every March in one humble place, central Nebraska's flat landscape full of cornfields, located in the middle of the United States. While people may fly over or drive through the area at high speeds on Interstate Highway 80, sandhill cranes stop to appreciate the adjacent wide, braided channels of the shallow Platte River to roost and feed. Last year, a record 1 million of the lanky, playful birds -- about 85 percent of the world's population -- stopped on their northward migration. In recent decades, more visitors have discovered the migration, looking up from car windshields as wave after wave of cranes fill the sky for six or more weeks, or crowd into river blinds -- a structure that allows bird watchers to remain hidden while peering through camera lenses and binoculars in awe. Scientists here say there is only one other migration as concentrated and spectacular in the world: the wildebeest migration in Africa.