The Upper Thames Branch covers Berkshire, Buckinghamshire and Oxfordshire, which includes the beautiful rolling hills of the Chilterns. It is home to several rare species of butterfly and moth, including the Black Hairstreak, Adonis Blue, Silver-spotted Skipper and the Striped Lychnis.
If you live in the region and are a member of Butterfly Conservation you automatically become a member of the Upper Thames branch.
Find out more
Send us your sightings and find out what has been spotted near you.
Take a look at the moths you could find in your area, and send your sightings to our moth recorders.
The Butterfly Effect. In Gloucestershire, we've borrowed a term associated with Chaos Theory, a curious idea that postulates that a butterfly flapping its wings in one place could cause a massive storm elsewhere.
The UK’s wildlife continues to decline according to the State of Nature 2019 report. The latest findings show that since rigorous scientific monitoring began in the 1970s there has been a 13% decline in average abundance across wildlife studied and that the declines continue unabated.
Numerous recent sightings of a moth that became extinct in the UK in the 1960s, suggest that it has recolonised and is now breeding across southern Britain.
In just three weeks this summer, nearly half a million Painted Lady butterflies were counted as part of the 10th UK-wide Big Butterfly Count, run by Butterfly Conservation and sponsored by B&Q.
Saturday 26th October 2019, 9:45am-5:00pm
Members' Day and Annual General Meeting
Sunday 3rd November 2019, 10:00am-1:00pm
Work party at Holtspur Bottom, Bucks
Sunday 17th November 2019, 10:30am-1:00pm
Brown Hairstreak egg hunt at Slade Camp, Headington, Oxford.
Volunteer with us
Butterfly Conservation relies on the support of thousands of volunteers, and we are always looking for more help inside the office and out in the field. Whether you want to volunteer at a local branch, get outside and help manage our nature reserves, or help with one of our events, we have something for everyone to get involved in! Your time can make a real difference.