Hen Nesting Behaviour: Meeting a Fundamental Laying Hen Welfare Need

Nest-seeking and egg-laying behaviour is among the most strongly motivated in laying hens. Inadequate nesting provision causes intense frustration and is a major welfare priority in all housing systems.

Key Facts

Hens show persistent and increasing motivation to find a secluded nesting site in the hours before laying
Frustrated nest-seeking in hens deprived of nests is associated with elevated corticosterone and stereotypic behaviour
Conventional battery cages provide no nesting facility, forcing hens to lay eggs on wire without any privacy
Enriched cages provide a small curtained nesting area, partially addressing this need
Cage-free aviaries provide communal nest boxes at recommended ratios of one box per 5 to 7 hens
Competition for nest boxes causes queuing behaviour and occasionally floor-laying in inadequately resourced systems
Nest quality including substrate, lighting, and location significantly affects nesting behaviour expression

Welfare Considerations

Nesting is one of the most strongly motivated and welfare-significant behaviours in laying hens. The distress caused by nest deprivation, manifest as increased vocalisation, pacing, and prolonged nest-seeking, represents genuine suffering that conventional battery cages inflict on every hen at every laying cycle throughout their productive lives. The welfare improvement from providing even minimal nesting facilities is significant, and cage-free systems that offer communal nests represent a meaningful advance over conventional cages. Nest quality matters as well as provision: hens prefer nests with appropriate substrate, dim lighting, and partial enclosure that provides privacy for this vulnerable behaviour. Ensuring adequate nest box access for all birds in large flocks requires attention to timing, queue management, and resource ratio.

What You Can Do

Choose eggs from cage-free or free-range systems that provide genuine nesting facilities
Support complete phase-out of conventional battery cages that provide no nesting access
Advocate for nest box quality standards including substrate and privacy requirements in certification
Learn about nesting as a strongly motivated welfare need to understand why cage-free matters
Encourage retailers to specify nest quality requirements alongside cage-free mandates in sourcing standards