Saving the Sumatran Rainforest - a year after our first visit to the RSPB's ambitious project in the Harapan Forest we return to see how the regeneration this threatened habitat is getting on - there has even been a glimpse of the fantastically rare Sumatran tiger. And, closer to home, we look at a restoration project in the UK - how the reserve at Sandy in Bedfordshire is being returned to lowland heathland where an Iron Age hill fort has been uncovered in the process! Plus if he were a bird what bird would comedian Rory McGrath choose to be?