The results coming in from various conservation bodies show it has been a very disappointing year for Butterflies. Even some of the best sites in the UK, like Hutchinson’s Bank, are reporting a decrease in species seen (sometimes as high as 33%) and a decrease in absolute numbers (as high as 50%). There is no doubt some of this is due to the somewhat eccentric weather pattern we had this year, especially early.
This has prompted Butterfly Conservation to declare a National Butterfly Emergency and push the government to take action to help protect our declining wildlife.
Announcing the results of the Big Butterfly Count, Butterfly Conservation said:
Overall, participants spotted just seven butterflies on average per 15-minute Count, a reduction of almost 50% on last year’s average of 12, and the lowest in the 14-year history of the Big Butterfly Count.
It was the worst summer in the Count’s history for Common Blue, Holly Blue, Green-veined White, Small White, Small Tortoiseshell, Painted Lady and Scotch Argus. And the majority of species (81%) showed declines in the number seen this year compared with 2023.
In total, just over 935,000 butterflies and day-flying moths were recorded across the UK from 12 July – 4 August, down almost 600,000, equivalent to more than a third of 2023’s total, and 9,000 Counts were logged as seeing zero butterflies, the highest in the citizen science programme’s history.
These figures have alarmed scientists and resulted in the charity declaring a nationwide ‘Butterfly Emergency’.
Dr Richard Fox, Head of Science at Butterfly Conservation, said: “The previous lowest average number of butterflies per Count was nine in 2022, this latest figure is 22% lower than that, which is very disturbing. Not just that, but a third of the species recorded in the Big Butterfly Count have had their worst year on record, and no species had their best. The results are in line with wider evidence that the summer of 2024 has been very poor for butterflies.
“Butterflies are a key indicator species; when they are in trouble we know that the wider environment is in trouble too. Nature is sounding the alarm call. We must act now if we are to turn the tide on these rapid declines and protect species for future generations.”
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