The Big Butterfly Count

20 June 2025

The annual Big Butterfly count takes place 18 July - 10 August this year.  Last year, together over 85,000 citizen scientists took part and submitted more than 143,000 counts to help understand how butterflies are faring. This revealed the UK is in a Butterfly Emergency, with more than half of our butterfly species now in long-term decline.

This year, why not join in to see if butterflies have had a chance to recover?

Taking part in the Big Butterfly Count only takes 15 minutes of your time. Simply follow the below steps to submit your counts between 18 July - 10 August.

1. Download the mobile app or sign in through the website
2. Find a sunny spot
3. Spend 15 minutes counting butterflies & moths
4. Record what species you see & how many there are

To download a butterfly identification chart and see how to take part, click this link.