Pilots in ultra-light planes have led sucessful migrations of Canada geese, trumpeter swans and sandhill cranes. Now they're hoping to use the same technique to save an endangered species, the whooping crane. At a remote refuge in Wisconsin, pilots are training ten young whooping cranes for a twelve-hundred mile flight to Florida this fall. If all goes well, it will be a giant step toward taking the whooping crane off the endangered species list. Minnesota Public Radio's Mary Losure reports.