Laying Hen Dust Bathing Behavior

Dust bathing is a highly motivated behavior in hens that is severely compromised in most commercial housing systems.

Key Facts

Hens perform dust bathing sequences lasting 15-30 minutes, multiple times per week
Dust bathing involves digging, wing shaking, and feather ruffling to clean plumage and deter parasites
Hens will dust bathe on wire floors in the absence of substrate, indicating strong motivation
Lack of dust bathing opportunity causes frustration and is associated with feather pecking
Cage-free and free-range systems with litter access allow more frequent dust bathing

Welfare Considerations

Dust bathing is not a luxury for hens but a biologically driven behavior with both physical function (parasite control, feather maintenance) and strong intrinsic motivational value. When denied suitable substrate, hens perform vacuum dust bathing on wire floors — demonstrating the strength of the motivation even when the behavior cannot achieve its biological purpose. Housing systems that provide adequate dry litter substrate enable hens to perform this core behavior and substantially improve welfare.

What You Can Do

Choose eggs from certified free-range or pasture-raised systems
Advocate for litter-based housing standards in egg production regulations
Support cage-free transitions by companies in your region
Reduce egg consumption or switch to plant-based egg alternatives
Educate others about hen behavioral needs and housing standards