This bird came back from extinction - now scientists in a glider are teaching it to migrate

Extinct in central Europe for 300 years, 36 northern bald ibis are following an ultralight aircraft on their long-forgotten migration route from Austria to Spain

The northern bald ibis was extinct in central Europe for 300 years. Now, it has returned - and scientist foster parents" aboard a tiny plane are teaching the birds to fly their long-forgotten migration routes.

Thirty-six of these endangered birds are now following an ultralight aircraft 1,740 miles (2,800km ) from Austria to Spain, on a trip that could take up to 50 days to complete.