Welcome

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 

Brimstone - Matt Berry

Butterfly sightings

Send us your sightings and find out what has been spotted near you. 

Small Elephant Hawk-moth - James O'Neill

Moth sightings

Take a look at the moths you could find in your area, and send your sightings to our moth recorders. 

Get involved 

News

  • The Butterfly Effect

    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.

  • No let-up in net loss of UK’s nature

    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.

  • Holy Grail of moth recording reappears in Britain

    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.

  • The Year of the Painted Lady

    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.

Catch up on all our news

Events

See all our upcoming events

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.

Find out how to get involved.

Branch information

In your area

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