Photo:Ben Hull / RSPB
This small, dark, long-tailed warbler is a resident of the south coast and parts of the east coast of the Uk, and has suffered in the past from severe winters. Its population crashed to a few pairs in the 1960s in England, but has now recovered, increasing in both range and numbers. Recent heathland restoration and climate change in the UK appear to have benefited this resident insectivore species. However the Dartford Warbler is still regarded as an Amber List species by the Royal Society for the Protection of Birds (RSPB).