Injurious feather pecking is among the most serious welfare problems in laying hen flocks, causing pain and death, and is best addressed through environmental enrichment rather than beak trimming.
Feather pecking represents a welfare failure at systems level: hens engage in injurious pecking because their environment frustrates natural foraging and exploratory behaviour. Beak trimming addresses the consequences (reduced damage) without addressing the cause, and creates its own welfare harm. The welfare-appropriate solution is the management improvements that enable beak-intact flocks - demonstrated feasible in multiple European countries for decades. The persistent gap between welfare evidence and policy implementation in the UK reflects industry economic resistance rather than genuine uncertainty about solutions.