Wild Birds

Wild Bird Feeding: Evidence-Based Welfare

Garden bird feeding supports urban wildlife but can also create welfare problems if done incorrectly, with science guiding better practice.

Key Facts

Over half of UK households feed garden birds, spending 200 million pounds annually on bird food
Disease outbreaks including finch trichomonosis spread through contaminated feeders
Nutritionally poor foods like bread can cause developmental deformities in young birds
Year-round feeding is now recommended by ornithologists rather than winter-only feeding
Supplemental feeding can support populations through cold snaps and drought

Welfare Considerations

Poorly maintained feeders concentrate birds in ways that accelerate disease transmission, causing significant suffering in affected individuals. Greenfinches have declined partly due to trichomonosis spread at garden feeders. Feeding bread to ducks can cause angel wing deformity in developing birds. Responsible feeding practices that avoid disease transmission and use appropriate food maximise welfare benefits while minimising risks.

What You Can Do

Clean bird feeders and birdbaths at least fortnightly
Use appropriate foods: sunflower hearts, suet, and nyjer seed rather than bread
Position feeders to reduce cat predation risk
Report unusual bird deaths to the Garden Wildlife Health scheme
Provide water for drinking and bathing year-round