Butterfly numbers fall by 22%

Butterfly numbers fell by more than a fifth across the UK countryside last year, a study has revealed.

Butterfly numbers in the UK have dropped by 22% due to last summer's cold weather. Credit: David Cheskin/PA Wire

The 22% drop in butterflies in 2011 is thought to be the result of an unusually cold summer and the ongoing deterioration of suitable habitat for the insects, wildlife charity Butterfly Conservation said.