Nest-seeking before egg-laying is one of the most strongly motivated behaviors in hens. Appropriate nest box provision is among the most important welfare interventions in laying hen management.
The nesting motivation in hens is not a preference but a powerful behavioral drive that, when thwarted, causes genuine suffering. A hen that cannot access a nest box before laying experiences prolonged distress — pacing, vocalizing, attempting to squeeze into inappropriate spaces — for up to an hour before the laying reflex overcomes the behavioral preference. When finally forced to lay in an inappropriate location, the hen shows obvious behavioral relief. The welfare equation is simple: adequate, well-designed nest boxes provided in sufficient numbers and appropriate locations prevent this suffering entirely. Floor egg rates above 5% are a reliable indicator that nest provision is inadequate and welfare is compromised.