Farm Animals

Hen Nesting Behaviour and Nest Box Provision

Laying hens have a strong behavioural motivation to find a secluded nest before laying eggs, and failure to provide this causes significant frustration and stress.

Key Facts

Hens spend 1-2 hours searching for a suitable nest site before laying
Nest box competition causes aggressive interactions in flocks with inadequate provision
Hens without nest access show behavioural indicators of frustration including pacing
Floor eggs from crowded nest boxes have higher contamination rates
Colony systems must provide at least one nest space per 7 hens under EU law

Welfare Considerations

The motivation to nest before laying is a deeply ingrained behaviour that causes measurable distress when thwarted. Inadequate nest provision leads to frustrated searching behaviour, aggression at nest boxes, and floor eggs that indicate welfare failure. High-welfare systems provide sufficient nest spaces of appropriate design, allowing all hens to nest with minimal competition.

What You Can Do

Choose eggs from systems with high nest box provision standards
Support welfare audits that include nest box competition assessment
Advocate for nest provision standards that exceed minimum legal requirements
Learn about hen behaviour to understand the importance of nesting
Support research into optimal nest box design for different housing systems