Recent data indicates that hazel dormice populations in England and Wales may be on the rise after years of decline. Warmer springs and summers from 2020 to 2025 appear to have contributed to this increase by enhancing food availability and reducing hibernation periods.
Despite this positive trend, conservationists emphasize the need for ongoing habitat protection and further research to ensure the long-term survival of this species, which has seen a nearly 60% decline since 2000.