The Upper Thames Branch has been protecting butterflies, moths and their habitats in the counties of Berkshire, Buckinghamshire and Oxfordshire since 1982. The Chiltern Hills, the Oxfordshire/Berkshire Downs, the Oxford and Aylesbury clay vales, the Bernwood Forest complex, the edge of the Cotswolds and the Berkshire heathlands are all to be found in the three counties.

Three-quarters of the British butterfly species can be found in the Upper Thames region, including the Black Hairstreak, Adonis Blue, Silver-spotted Skipper and Duke of Burgundy. Over 1700 moth species have been recorded, including Drab Looper, Striped Lychnis and Heart Moth.

The Branch is entirely run by volunteers. If you think you may be able to help us in any way, please click the "Volunteer with UTB" button below to find out more.