Perching Behavior and Welfare in Laying Hens

Why perching is a fundamental behavioral need for chickens, and how lack of perches in cage systems causes chronic behavioral frustration.

Key Facts

Chickens have a strong instinct to roost above ground, especially at night
Failure to provide perches creates frustration that is not reduced by other enrichment
Hens on perches show reduced fearfulness and better bone strength
Colony and enriched cage systems are required by EU law to provide perches
Ground-level resting in large barns is inadequate as a substitute for elevated roosting

Welfare Considerations

Perching is one of the most strongly motivated behaviors in laying hens - they will work persistently for access to elevated resting positions even when alternative resting space is available. This motivation reflects natural anti-predator behavior and thermoregulatory needs. Hens denied perches show increased alertness and fear responses, and the frustration of this need contributes to aggression and feather-pecking. Perching also benefits bone health - hens with access to perches have significantly higher keel bone strength. Provision of adequate perching space is one of the most important welfare improvements in commercial layer housing.

What You Can Do

Choose eggs from systems with mandatory perching provision
Advocate for perching requirements in all commercial layer systems
If keeping backyard hens, provide multiple roost bars at appropriate height
Support research into optimal perch design for commercial flocks
Raise awareness that cage systems typically deny this fundamental behavioral need