Wildlife

Barn Swallow Welfare on Long-distance Migration

Barn swallows migrate 10,000km between UK breeding sites and South African wintering grounds, facing welfare challenges from habitat change at both ends and along migration corridors.

Key Facts

Barn swallows winter in South Africa and return to the same UK farm buildings each year
UK populations have declined by 56% since 1970, with declines linked to farmland insect loss
Swallows refuel at wetland and insect-rich grassland sites during migration through Europe and Africa
Climate change is affecting insect availability and rainfall patterns along migration corridors

Welfare Considerations

Barn swallow welfare is affected by the cumulative quality of habitat at breeding sites, migration stopover sites and wintering grounds. Loss of farmland insects in the UK reduces pre-migratory body condition that is critical to migration success. Changes in rainfall patterns in sub-Saharan Africa affect survival on wintering grounds.

What You Can Do

Support agri-environment schemes that promote insect-rich farmland habitats for swallows
Maintain open access to farm buildings, barns and outbuildings used for swallow nesting
Record swallow arrival dates via BTO BirdTrack to contribute to long-term migration phenology monitoring
Support African wetland and grassland conservation organisations that protect swallow wintering habitat