Merlins are the UK smallest falcon, breeding on upland heather moorland and wintering on lowland coasts and farmland. Moorland management practices significantly influence merlin breeding success and welfare.
Merlins nesting in heather that is burned too frequently lack the dense mature heather required for nest concealment, increasing nest predation risk. Loss of meadow pipit prey through overgrazing of upland grassland reduces food availability for breeding pairs and chicks. Adults that fail to find adequate prey for their brood experience chronic foraging stress. The intersection of grouse moor management and merlin welfare creates genuine conservation conflicts.