Rare butterfly spotted for first time in half a century

The rare Yellow-Legged Swallowtail has been spotted in Norfolk. Credit: RSPB

Butterfly enthusiasts are on the lookout for a rare species which has been spotted in Norfolk, Suffolk and Essex for the first time in more than 50 years.

The Yellow-Legged Tortoiseshell is believed to have arrived in the UK from eastern Europe. The latest potential sighting was in Taverham near Norwich.