Garden bird feeding is one of the most widespread wildlife welfare interventions, with significant benefits but also risks that responsible feeders should understand.
Garden bird feeding provides genuine welfare benefits when done correctly but carries real risks when hygiene and food quality are neglected. Dirty feeders concentrate disease transmission among birds that would not naturally come into close contact. Inappropriate foods such as salted nuts, mouldy bread, and desiccated coconut can harm or kill birds. Providing a range of appropriate, fresh foods from clean feeders and regularly maintained baths represents evidence-based welfare-positive intervention. The benefits of supplementary feeding are greatest during severe winter weather and breeding seasons.