Wildlife

Barn Owl Welfare: Nest Boxes, Prey Availability and Rodenticides

Barn owls are iconic British birds facing challenges from habitat loss, prey scarcity, and poisoning. Understanding their welfare needs helps inform conservation action.

Key Facts

Barn owl populations declined by over 70% in the 20th century before stabilisation
They require open grassland with short vegetation for hunting voles and mice
Nest box schemes have significantly boosted breeding success across the UK
Rodenticide (second-generation anticoagulant) poisoning is detected in 80% of tested UK barn owls
Severe winters and cold, wet springs drive starvation in juveniles
Road collisions kill hundreds of barn owls annually along foraging routes

Welfare Considerations

Barn owls face chronic nutritional stress in agricultural landscapes with poor prey availability. Rodenticide accumulation causes internal bleeding that may lead to prolonged suffering before death. Cold weather compounds prey scarcity, causing starvation stress in birds already compromised by toxin exposure. Nest box provision addresses one limiting factor but cannot compensate for depleted farmland vole populations.

What You Can Do

Install or support barn owl nest box schemes on appropriate farmland
Advocate for restrictions on second-generation rodenticide access by the public
Support agri-environment schemes restoring rough grassland for barn owl foraging