Wildlife

Wild Cuckoo UK Decline Welfare

Cuckoo populations have declined severely in the UK, with both host availability and African wintering ground conditions implicated.

Key Facts

UK cuckoo populations declined by 65% between 1995 and 2020
Breeding depends on finding suitable host nests
Tracking shows different migration routes have different survival rates
Sahel drought affects insect availability at refuelling sites
Caterpillar availability during breeding has declined with habitat change

Welfare Considerations

Cuckoos failing to find host nests cannot breed, wasting the energetic investment of migration. African wintering habitat degradation causes mortality during the non-breeding season. Multiple conservation interventions are needed across the annual cycle.

What You Can Do

Support host species habitat management
Donate to BTO cuckoo tracking research
Advocate for international migratory bird conservation