Big Butterfly Count 2026: 17 July – 9 August

Date/Time

 17 July 2026
 All Day

A butterfly on a pink flower A butterfly on a pink flower

Big Butterfly count – a nationwide citizen science survey aimed at helping us assess the health of our environment. It was launched in 2010 and has rapidly become the world’s biggest survey of butterflies.

By taking part in Butterfly Conservation’s Big Butterfly Count – a UK wide survey, you can help assess the health of our environment simply by counting butterflies.

To find out what to do, go to: https://bigbutterflycount.butterfly-conservation.org/about.  It includes a handy identification chart.