Big Butterfly Count- Butterfly Conservation

The Big Butterfly Count is 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.

The Big Butterfly Count 2026 reopens on the 1st of July ready for the main event between the 17th of July and 9th of August.

Simply count butterflies for 15 minutes during bright (preferably sunny) weather during the Big Butterfly Count. We have chosen this time of year because most butterflies are at the adult stage of their lifecycle, so more likely to be seen. Records are welcome from anywhere: from parks, school grounds and gardens, to fields and forests.

For more information and how to participate, click here.