Island's rare birds return after rats wiped out

Over 300 tonnes of poison was dropped from helicopters on South Georgia before the island was declared rodent-free . The 10-year £10m Habitat Restoration Project targeted invasive rodents.

► Subscribe to FT.com here: http://bit.ly/2GakujT

► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs

For more video content from the Financial Times, visit http://www.FT.com/video

Twitter https://twitter.com/ftvideo
Facebook https://www.facebook.com/financialtimes