Wild Bird Garden Feeding Best Practice

Supplementary garden bird feeding can benefit wild bird welfare when done correctly, but poor practice can spread disease and provide inadequate nutrition.

Key Facts

Over 150 million kilograms of supplementary bird food are purchased annually in the UK
Supplementary feeding increases overwinter survival of some species including blue tits and great tits
Finch trichomonosis spreads through contaminated bird feeders and has caused significant greenfinch declines
Cleaning feeders at least once every two weeks reduces disease transmission risk substantially
Peanuts in mesh feeders, sunflower hearts, and fat balls are among the most nutritious supplementary foods
Bread provides minimal nutrition and can cause crop impaction in some bird species
Feeding consistently once established is important as birds come to rely on the food source

Welfare Considerations

Garden bird feeding is one of the most widespread forms of direct wildlife welfare action by members of the public. When done well, it provides a meaningful welfare benefit — particularly for small resident species during cold periods when natural food is scarce. When done poorly, it can spread disease through contaminated feeders and feeding areas, or provide nutrition-poor food that meets energy needs without providing essential micronutrients. The spread of finch trichomonosis through shared contaminated feeders has caused measurable population declines in some species, demonstrating that poorly managed feeding can harm the very birds it is intended to help. Regular feeder cleaning, nutritious appropriate food types, and consistent feeding are the pillars of welfare-positive garden bird feeding.

What You Can Do

Clean bird feeders and feeding areas at least fortnightly using dilute disinfectant solution
Use nutritious foods including sunflower hearts, nyjer seed, and mealworms rather than bread and scraps
Remove feeders temporarily if you observe sick birds to reduce disease transmission
Provide fresh water daily for drinking and bathing alongside food feeders
Feed consistently through winter once you have established a regular feeding station that birds rely on