Butterfly numbers 'still falling' in the UK
Almost three quarters of UK butterfly species have declined in abundance over the past decade.
According to a study compiled by Butterfly Conservation and the Centre for Ecology and Hydrology, even common species have seen a fall of 24%.
Researchers say habitat loss is likely to be the main reason. The BBC's Daniel Boettcher reports.
07 Dec 2011
- From the section Science & Environment