Whooping Cranes Are Taught To Migrate With Ultra Light Aircraft

NECEDAH, WI - SEPTEMBER 18: An Ultralight aircraft leads a pack of endangered Whooping cranes on a practice run in the Necedah National Wildlife refuge September 18, 2008 in Necedah, Wisconsin. Operation Migration aims to lead the group of cranes on their annual migration using ultralights to Florida next month. Operation Migration has played a leading role in the reintroduction of endangered Whooping Cranes into eastern North America since 2001. (Photo by Jeffery Phelps/Getty Images)