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 and Striped Lychnis Moth.

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 


  • Attenborough: ‘Watching butterflies is good for you!’

    Sir David Attenborough has spoken of the mental health benefits of watching butterflies as he urged the public to take part in the world’s biggest butterfly survey over the next three weeks.

  • Latest trends in butterfly indicators revealed

    In the UK, since 1976, the habitat specialists butterflies index has fallen by 77%, whilst wider countryside abundance is down by 46%.

  • March of the micros

    An increasing number of new moth species are arriving and settling in the UK as a result of the global reach of the horticultural trade and the changing climate, moth experts today revealed.

  • Extinct butterfly flies again

    The Chequered Skipper has been returned to England after 40 year absence


  • Upper Thames Field Meeting

    Saturday 28th July 2018: 10.00am

    Paices Wood, Aldermaston, Berks

    Join us on a walk to look at the varied habitats of this country parkland.

  • Upper Thames Field Meeting

    Saturday 28th July 2018: 10.30am

    Buttlers Hangings, West Wycombe, Bucks

    Join us on a to see summer butterflies and hopefully some of the rarer species on Buttler’s Hangings including Chalk Hill Blue and Silver-spotted Skipper.

  • Upper Thames Field Meeting

    Sunday 29th July 2018: 10.30am

    Oven Bottom, Aston Upthorpe Downs, Oxon

    Join us on a walk to look for butterflies of high summer.

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.

Contact branch

  • Chairman
    Nick Bowles
  • Honorary Secretary & Branch Contact
    Dave Wilton
  • Honorary Treasurer
    Chris Woodrow

Branch website committee page