The latest official statistics on the abundance of UK butterflies, produced through the UK Butterfly Monitoring Scheme (UKBMS) were released on Friday 25 March 2022.
This update provides population trends up to the year 2021 for 56 of the 59 species of butterflies that occur regularly in the UK.
UK butterflies have been monitored annually since 1976 by thousands of volunteers as part of the UKBMS, making butterflies one of the best monitored groups of animals in the UK.
The UKBMS is organised and funded by Butterfly Conservation, the UK Centre for Ecology & Hydrology, British Trust for Ornithology, and JNCC. The UKBMS is indebted to all volunteers who contribute data to the scheme.
For the details of the latest update, visit the UKBMS website.