Wild Barn Owl Breeding Welfare | Animal Welfare Hub

Barn owl breeding welfare depends on nest site availability, prey abundance, and weather conditions during the vulnerable chick-rearing period.

Key Facts

Barn owls need hollow trees, barns, or nest boxes for successful nesting
A pair requires a hunting territory providing sufficient voles and other small mammals
Cold wet summers reduce vole activity and chick food delivery rates causing starvation
Barn owl chick mortality from starvation peaks in poor prey years
Nest box provision has significantly increased barn owl breeding density in agricultural landscapes

Welfare Considerations

Barn owl chicks that receive insufficient food during development suffer progressive starvation over days to weeks. Cold wet weather that reduces vole activity creates the conditions for chick mortality even in territories with adequate prey density in normal years. Nest box provision that expands breeding opportunity is a welfare benefit - more breeding pairs means more chicks successfully fledged per year. Supplementary vole habitat through rough grass margins improves prey availability.

What You Can Do

Install barn owl nest boxes in suitable rural buildings and trees
Create rough grassland margins and field edges to support vole prey populations
Support Barn Owl Trust nest box and monitoring programmes