Feather pecking in laying hens causes pain, injury and death, and is driven by frustration of natural foraging behaviors in inadequate environments.
Feather pecking represents one of the most serious welfare challenges in commercial egg production. Affected hens experience painful feather loss exposing skin to further injury. The transition away from battery cages, while improving overall welfare, has increased feather pecking incidence as greater bird mobility increases contact and competition. Providing deep litter, pecking objects, and low light intensity are the most evidence-based interventions.