Wing clipping in companion birds - trimming flight feathers to restrict flight - is a controversial practice with both welfare advocates and critics presenting evidence-based arguments.
Wing clipping welfare depends substantially on the alternative to clipping - a clipped bird in a safe, enriched environment may have better welfare than a flighted bird in an unsafe or impoverished one. However, where environments can be made safe for flight, allowing birds their natural locomotion is consistently associated with better physical and psychological welfare outcomes. The trend in progressive aviculture is toward environmental modification rather than bird modification.