From Friday,  18  July to Sunday,  10  August  2025, Butterfly Conservation’s Big  Butterfly  Count will once again turn tens of thousands of nature‑lovers into citizen‑scientists. By spending just 15 minutes counting butterflies (and day‑flying moths) on your favourite heath, common, woodland glade – or even in your own garden – you’ll create a vital snapshot of how these insects are faring across the UK.