Garden bird feeding is one of the most widespread wildlife welfare interventions, with evidence-based practices significantly improving outcomes for fed bird populations.
Garden bird feeding represents one of the most direct and accessible individual contributions to wild animal welfare. In severe winters, supplementary food genuinely maintains the body condition of birds that would otherwise succumb to cold and hunger. The welfare benefits are real and measurable. However, poorly managed feeding can cause harm: dirty feeders concentrate pathogens that spread finch conjunctivitis and other avian diseases; inappropriate foods including salted or spiced items cause nutritional harm; and year-round feeding in some contexts may increase nest predation through attracting corvids. Feeding well — with appropriate foods, hygienic feeders cleaned weekly, and fresh water available — maximises welfare benefit while minimising disease risk.