To Make A Wild Comeback, Cranes Need More Than Flying Lessons

For 15 years, biologists have been teaching some of the young cranes to migrate between Wisconsin and Florida by leading them with an ultralight, one-person aircraft. Now, however, biologists have discovered that teaching the cranes to migrate seems to have created serious problems for the birds — they rarely reproduce successfully. The Federal Fish & Wildlife Service has halted the flights and is now trying to figure out what went wrong. The irony here is that the migration project, a leap of faith and a scientific gamble, worked. continue