Barn Swallow Welfare and Farm Habitats

Barn swallows are beloved summer visitors whose welfare depends on access to farm buildings for nesting and insect-rich habitats for feeding.

Key Facts

UK barn swallow populations have declined by around 40% since the 1970s
They breed almost exclusively in farm buildings, requiring open access to barns and sheds
Chick welfare depends on abundant aerial insects within foraging distance of nest sites
Adults accumulate mud and plant fibers to construct cup nests attached to beams and walls in buildings

Welfare Considerations

Barn swallow welfare on farmland is affected by both nesting site access and aerial insect availability. The trend toward sealed, modern farm buildings that prevent swallow entry has reduced nesting opportunities significantly. Organic-rich environments including livestock yards that support abundant flies provide the aerial insect prey that swallow parents need to feed chicks successfully. Farms that maintain open access to old barns and sheds, combined with livestock that contribute to the insect-rich environment, provide the dual welfare requirements of nesting space and food. Disturbance of active nests during the breeding season is illegal and causes chick abandonment.

What You Can Do

Leave access openings in farm buildings or install swallow nest cups to provide nesting opportunities
Support farms that maintain old buildings accessible for swallow nesting
Avoid disturbance near active swallow nests during the breeding season from May to September
Report swallow nest sites to local wildlife groups and encourage protection during any building maintenance