�y��vlog

At one point you describe how purple emperors get drunk, literally, on toad poison.

It’s widely accepted that he put the purple emperor back into Lincolnshire – but critics argue that the butterfly would have returned eventually.

Other safaris, both on foot and in vehicles, focus on the dawn chorus, bats and moths, purple emperor butterflies, Sussex oaks, owls, kingfishers and other highlights of the natural world.

Species like purple emperor butterflies and nightingales, which had not been sighted for a generation, returned, the soil recovered from decades of fertilizer overuse, and natural river systems were restored.

The Knepp Castle estate boasts more purple emperor butterflies than anywhere in Britain.