Wildlife

Wild Barn Owl Winter Survival: Cold Weather Management

Barn owls are highly vulnerable to prolonged snow cover and cold wet conditions that eliminate small mammal prey access.

Key Facts

Barn owls have zero fat reserves and die within 2-3 days without food in winter
Prolonged snow cover eliminates access to field voles, the primary prey
Supplementary feeding at nest box sites has saved owl populations during extreme winters
Rough grassland adjacent to nest sites provides prey access when snow is lighter

Welfare Considerations

A starving barn owl in winter dies from hypothermia and organ failure over hours to days. Targeted supplementary feeding at known nesting sites during persistent snow events directly saves lives. The welfare cost per saved owl is low and the intervention is evidence-based.

What You Can Do

Contact the Barn Owl Trust for guidance on supplementary feeding protocols
Manage or encourage rough grassland near owl territories to support prey populations
Report barn owl deaths or sightings of underweight owls to the Barn Owl Trust