The Knepp Estate in southern England, owned by Isabella Tree and Charlie Burrell, has seen a surge in biodiversity since 2001, when they began a rewilding project on the former farm. The project saw an 870% rise in dragonflies and damselflies on the estate between 2005 and 2025, and 110% growth in butterfly species richness. The number of turtle doves has dropped by 98% since 1994, and they have been on the UK Red List for 20 years. A review of wildlife on the site found that the number of singing males rose from two in 2008, to 22 in 2024. Successful rewildings have also resulted in a ninefold increase in breeding bird numbers since 2007. However, despite this success, environmental expert Robon Stononon, director of landscape recovery at the Wildlife Trust, suggests that habitat loss is one of the primary drivers of species decline in the country.