BBC Radio 4 Nature programme – excellent documentary by Bret Westwood of the ecology and recent history of the large blue and the habitat management work at Collard Hill and Green Down.
Radio 4 Saving species Hear Jeremy Thomas and Dave Simcox talk about the re-introduction of thelarge blue in the cotswolds using larvae from both Collard Hill and Green down. Also featuring our very own Sarah Meredith! Start listwening from 9m 30.
Hear the caterpillars talk to the ants!. BBC sound engineer Chris Watson has recorded the actual sounds of the caterpillar mimicking the ants in order to live underground and feed off a host ant colony! Here and see footage of this from the BBC, and also on the Butterfly Conservation web-site.
Centre for Ecology and Hydrology (CEH) – The Co-ordinators of the large blue project, their website has an excellent array of detailed information and research into the large blue.
UK Butterflies – For the latest news from visitors to excellent butterfly sites across the country, including Collard Hill
Butterfly conservation Somerset and Bristol branch – For details of excellent sites to visit in Somerset
Somerset Wildlife Trust (SWT) – Details of the fantastic reserves managed by in the county SWT, including the donor site for Collard Hill – Green Down