Wildlife

Wild Bird: Swallow Autumn Migration Welfare

Barn swallows undertake a gruelling migration from the UK to sub-Saharan Africa each autumn, facing multiple welfare challenges along the route.

Key Facts

Barn swallows migrate approximately 10,000 km each way between the UK and southern Africa
The journey takes 6-8 weeks with the Sahara crossing being the highest-mortality stage
Swallows build up fat reserves before and during migration as fuel for long-distance flight
Insect food availability along the route directly affects migration success and welfare
UK swallow populations have declined by 47% since 1970, partly due to insect loss at breeding and wintering sites

Welfare Considerations

Migration is inherently demanding - swallows that lack adequate fat reserves before the Sahara crossing face starvation. Extreme weather events, habitat loss, and insect declines along migration routes increase welfare harm en route. Conservation efforts that support insect populations and wetland habitats at both ends of the migration route improve welfare prospects for this long-distance migrant.

What You Can Do

Maintain or create insect-rich habitats including wildflower areas and ponds
Support agri-environment schemes that fund insect-friendly farming
Report swallow arrivals and departures to BTO tracking schemes
Avoid insecticide use that reduces the aerial insect prey on which swallows depend
Support conservation projects at African wintering sites