Wild Animal Welfare

Wild Barn Swallow Population Decline

Barn swallow populations are declining across their range due to invertebrate loss - understanding the drivers enables targeted welfare conservation.

Key Facts

UK barn swallow populations have declined 60% since the 1970s
Invertebrate biomass (flying insects) has declined 75%+ over the same period
Farm building access for nesting has declined with modern building management
Swallow nesting in barns benefits from active farmer tolerance and provision of internal access
Summer temperatures affect flying insect availability and chick rearing success

Welfare Considerations

Individual swallows returning to breeding grounds from their 10,000 km migration find dramatically depleted food supplies compared to historical conditions. Each individual's welfare depends on local invertebrate availability in their breeding territory.

What You Can Do

Allow barn access for swallow nesting if you have farm buildings
Create insect-rich habitat with native flowering plants in gardens
Support agri-environment schemes that target insect-rich farmland habitat creation