Cranes On The Way

Some of the three dozen migrating whooping cranes that winter in Florida have begun their spring flight to Wisconsin.More cranes are expected to fly north within the next few weeks.Wildlife officials put together that experimental migrating flock for the Eastern U-S. , in case something happens to the only other migrating flock of whoopers, which winters in Texas and spends summers in western Canada.Scientists say there are several potential threats to the western birds.Chuck Quirmbach reports…