Wildlife

Wild Bird Feeders and Disease Transmission

Garden bird feeders provide valuable supplemental nutrition but can facilitate disease transmission between wild birds.

Key Facts

Salmonella, trichomonosis, and finch eye disease spread at feeders
Crowding at feeders amplifies disease transmission risks
Regular cleaning dramatically reduces disease spread
Trichomonosis has caused significant greenfinch population declines

Welfare Considerations

While garden feeders benefit birds during food-scarce periods, dirty feeders and crowded conditions can accelerate disease spread, causing suffering and population-level harm. Responsible feeding requires hygiene management.

What You Can Do

Clean feeders with dilute bleach solution every 1-2 weeks
Remove rotting food promptly and dry feeders before refilling
Space multiple feeders to reduce crowding
Stop feeding temporarily if sick birds are observed