Tawny Owl Welfare in Woodland Habitats

The tawny owl is Britain's most common owl species, dependent on mature deciduous woodland with abundant small mammal prey and suitable nest cavities.

Key Facts

Tawny owl population estimated at 50,000 breeding pairs in the UK
Strictly nocturnal and territorial, with pairs holding territories year-round
Diet consists primarily of small mammals including wood mice and voles
Nest in tree holes or squirrel dreys, rarely using nest boxes initially
Juveniles disperse in autumn and high mortality from territory competition is common

Welfare Considerations

Tawny owl welfare is linked to woodland connectivity, prey abundance, and nest site availability. Loss of mature trees with natural cavities reduces nesting opportunities. Rodenticide contamination from second-generation anticoagulants used in farm and domestic settings causes liver damage and death in tawny owls feeding on poisoned prey. Road traffic kills many dispersing juveniles in autumn. Lead poisoning from ingested lead shot in prey species is documented in tawny owls. Nest box provision compensates for cavity loss in managed woodlands. Maintaining connected woodland corridors allows territory establishment by dispersing birds.

What You Can Do

Avoid using second-generation rodenticides (SGARs) in buildings and gardens
Erect tawny owl nest boxes in suitable mature woodland on your land
Advocate for mandatory marking of all rodenticide use to enable source tracking
Report injured tawny owls to local wildlife rehabilitation centres promptly