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.
Around three quarters of the UK population (74%) have some negative opinion of moths, with many people believing the majority eat clothes and are pests, a study has revealed.
UK butterflies bounced back in 2018 following a string of poor years, thanks in part to last year’s heatwave summer, a study has revealed.
One of the UK’s most highly threatened and unusual beetles has been discovered in a number of new locations in the Cotswolds thanks to an innovative conservation scheme.
Wednesday 26th June 2019, 7:00pm-9:30pm
Ever wondered what butterflies do outside transect hours? Come and find out!
Friday 28th June 2019, 10:00am-1:00pm
Pitstone Hill, Bucks
Join us on a field trip to search for Duke of Burgundy larvae
Saturday 29th June 2019, 11:00am-1:00pm
Silchester Common, Hants
Join us on a field trip to look for the Silver-studded Blue.
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.