As three years of restoration at Ashridge Estate in Hertfordshire near completion, endangered bird species have been spotted thriving in the ancient woodland. Since 2022, work has been underway to thin out densely packed trees, improving the habitat for wildlife in the largest woodland managed by the National Trust.
Specialized track matting was used to protect the forest floor while heavy machinery cleared overgrown plantations that had blocked essential sunlight. The National Trust reported that increased sunlight has boosted biodiversity and provided more food sources for species like the red-listed spotted flycatcher.
Matthew L’Estrange, area ranger at Ashridge Estate, noted the positive impact of thinning the tree canopy. “We’ve noticed a rise in flying insects, which provide a vital food source for birds. This year, we spotted a flycatcher in areas where it hadn’t been seen before, along with more butterflies like the silver-washed fritillary,” he explained.
Over the first two years, 24 hectares of ancient woodland have been restored, with 16 additional hectares scheduled for completion this year. The restoration team initially used protective matting in less sensitive parts of the estate to minimize damage from machinery, later expanding it to other areas once its effectiveness was proven.
L’Estrange acknowledged that visitors might be surprised by the sight of tree felling but emphasized that the overcrowded plantations offered limited diversity and wildlife benefits. “What we’re doing here really works,” he assured.
Emily Smith, countryside manager at Ashridge Estate, highlighted the long-term benefits of the project. “As more sunlight reaches the forest floor, we expect an increase in vegetation and nectar sources, creating ideal conditions for breeding birds such as blackcaps, song thrushes, and garden warblers,” she said.
The restoration efforts are being carried out in collaboration with the Woodland Trust and supported by funding from the Forestry Commission.