Backyard bird feeding is one of the most widespread human-wildlife interactions, with both welfare benefits and potential harms.
Bird feeding is a case where good intentions can cause harm if done carelessly. The welfare benefits of supplemental feeding during food scarcity periods are real, but disease transmission at dirty or overcrowded feeders causes genuine suffering and mortality. Responsible bird feeding integrates feeder hygiene, appropriate food selection, window collision prevention, and predator management into a practice that genuinely benefits wild birds. The evidence suggests that maintained, well-managed feeders provide net welfare benefit, while neglected or improperly sited feeders can be net harmful. Citizens who feed birds are encouraged to treat it as an animal welfare responsibility rather than a casual recreational activity.