02/06/2026
Great results for Dartford Warblers on RSPB nature reserves!
A recent national Heathland Birds Survey has recorded 264 pairs of Dartford Warblers on RSPB reserves during 2025 – their best year on record. And incredibly, 97 of these pairs were at RSPB Arne and Weymouth Wetlands in Dorset, which is a record-breaking number for the site. Other pairs were also counted at RSPB Aylesbeare (25), RSPB Minsmere, RSPB North Warren (17), RSPB Farnham Heath (23) and RSPB Broadwater Warren (15).
Previously facing extinction in the UK with only a handful of pairs remaining in Dorset just over 60 years ago, their numbers have undergone population crashes due to cold winters but have since generally risen. On our reserves, the impressive numbers are largely thanks to efforts to restore their precious heathland habitat demonstrating the importance of these protected areas for threatened species.
Lowland heathland is one of the most threatened habitats in the UK with 80% lost since the 1800s due to forestry and land-use change. To tackle this, our dedicated staff and volunteers have been restoring the precious habitat here by removing plantations and reverting arable land. Joining areas of fragmented heathland provides Dartford Warblers with the vital dense gorse they need to thrive.
📷 credits:
Phillip Croft, RSPB
Les Cater, RSPB
Ben Andrew, RSPB
Phillip Croft, RSPB
🎵 Audio by:
David Darrell-Lambert, via Xeno-Canto