Access to perches is a fundamental behavioral need for laying hens, and perch design and placement significantly affects whether hens actually use them and the welfare benefits they provide.
Perch access is not merely a preference for laying hens — it is a behavioral need driven by deep-rooted anti-predator instincts. Hens denied perching show distress and frustration. However, perch provision alone is not sufficient: design matters. Poorly designed perches cause keel bone fractures, overcrowding, and aggression. Rounded perches of appropriate diameter, placed at heights accessible without injury risk, and in sufficient numbers to accommodate all hens simultaneously, provide genuine welfare benefits. Welfare certification that specifies perch design standards rather than just presence is more meaningful.