Wild Bird Feeding: Benefits, Risks, and Best Practice

Garden bird feeding provides genuine welfare benefits for many species but carries risks from disease transmission and inappropriate foods. Evidence-based feeding practices maximize benefits while minimizing harms.

Key Facts

UK garden bird feeding is estimated to provide critical supplementary nutrition for an estimated 70 billion bird feeding visits annually.
Salmonella outbreaks at contaminated bird feeders have caused mass mortality events for greenfinches and other species.
Year-round feeding is increasingly recommended over seasonal feeding as climate change disrupts traditional food availability.
Inappropriate foods including salted foods, cooking fat, and dry rice cause welfare harm to garden birds.
Clean feeders maintained weekly reduce disease transmission risk by removing accumulated droppings and moldy seed.

Welfare Considerations

Garden bird feeding provides genuine welfare benefits — supplementary nutrition that reduces starvation risk during winter and supports breeding success in garden-nesting species. However, poorly maintained feeders and inappropriate foods cause welfare harm through disease transmission and digestive damage. Salmonella outbreaks associated with dirty feeders have caused significant mortality in greenfinches and chaffinches. Regular feeder cleaning, appropriate food placement, and evidence-based food choices maximize the welfare benefit of garden feeding while avoiding the disease transmission harms associated with poor management.

What You Can Do

Clean feeders weekly with mild disinfectant and rinse thoroughly before refilling.
Provide appropriate foods: nyjer, sunflower hearts, suet, and quality mixed seed.
Never provide salted food, cooked fat drippings, or dry rice to garden birds.
Place feeders and water sources in positions that reduce predation by cats.
Follow RSPB bird feeding guidance for species-specific recommendations.