Wildlife

Wild Bird Feeding: Benefits, Risks, and Best Practice

Feeding wild birds benefits millions of individuals, but poor practice can cause disease, dependency, and harm to the very birds it aims to help.

Key Facts

Over 50% of UK households feed garden birds
Bird feeding supports species like blue tits and robins through winter
Salmonella outbreaks at feeders have killed thousands of greenfinches
Feeders must be cleaned weekly to prevent disease transmission
Supplementary feeding reduces winter mortality significantly in many species

Welfare Considerations

Dirty feeders concentrate birds and enable transmission of Salmonella, Trichomonas, and Avian pox. Trichomonad disease (finch disease) has decimated greenfinch populations in the UK since 2006. Inappropriate foods (dry bread, salted peanuts, avocado) cause nutritional harm and aspiration in chicks. Clean feeders with appropriate foods dramatically improve welfare outcomes.

What You Can Do

Clean feeders with mild disinfectant solution at least weekly
Use species-appropriate foods: sunflower hearts, nyjer, suet, mealworms
Avoid bread, salted foods, and desiccated coconut
Position feeders to prevent cat ambush
Report sick birds to the British Trust for Ornithology Garden BirdWatch