Feeding garden birds is enjoyed by millions but must be done correctly to avoid causing disease, dependency, and nutritional harm. Evidence-based feeding practices benefit bird welfare significantly.
When done well, garden bird feeding supplements natural food supplies and can genuinely reduce winter mortality. However, dirty feeders concentrate birds artificially, facilitating disease transmission — Trichomonosis killed millions of finches in the UK in recent decades. Inappropriate foods like salted peanuts, bread, or desiccated coconut can cause serious harm. Well-managed feeding stations provide real welfare benefits, while poorly managed ones cause net harm.