Stonechats are year-round residents of coastal heathland and gorse scrub in Britain. Their welfare depends on the mosaic of open ground, gorse and heather that their territory management requires.
Stonechats nesting in heathland subject to inappropriate gorse management experience breeding failure when nest sites are removed. Heathland that is burned too frequently eliminates the tall gorse needed for nesting. Conversely, heathland not managed at all becomes too dense with gorse and bramble, reducing the open ground foraging areas stonechats require. Individual birds affected by cold winter spells lose body condition rapidly and can starve during prolonged frosts when invertebrate prey is unavailable. Population crashes following severe winters reflect the cumulative mortality of individually vulnerable birds unable to maintain adequate food intake.