Feeding wild animals in urban environments is an extremely common human behavior that has both welfare benefits and significant risks. Understanding the evidence helps people feed wildlife more responsibly.
Wildlife feeding welfare implications are genuinely bidirectional: well-executed feeding can provide real welfare benefits, particularly for birds during cold winters when natural food is scarce. Poorly executed feeding — wrong foods, unclean feeders, locations that create predation risk, or feeding that creates dependency — causes welfare harm. The bread-for-ducks phenomenon is a useful illustration: bread provides empty calories without the nutrients waterfowl need, and heavy supplementary feeding in waterfowl can cause angel wing deformity in growing birds and contributes to water quality degradation that affects welfare of other species. The welfare-positive approach to wildlife feeding involves species-appropriate foods, clean equipment, predator-aware placement, and seasonal calibration that supplements natural food rather than replacing it.