Jonathan Slaght spent five years risking life and limb in the remote forests of eastern Russia researching the largest and one of the most elusive owls on the planet.
The endangered Blakiston's fish owl has a wingspan of six feet and are the easiest to find in winter, where their tracks can be spotted along the snowy river banks.
Jonathan Slaght has long been enamoured by the mysterious bird and alongside a devoted team, embarked on a research mission involving blizzards, the crossing of thawing rivers and the threat of a run in with bears and tigers.
Lynn Freeman spoke to Slaght about his book, A Quest to Find and Save the World's Largest Owl documenting his adventures.
