Barn owl chick welfare in the nest is shaped by hatching order, food availability, and sibling competition - dynamics that conservation management can observe but rarely intervene in directly.
Barn owl nest welfare involves natural processes - sibling competition and occasional starvation of youngest chicks - that are part of the species' evolved life history. The welfare concern is greatest when human-driven factors (vole population decline, rodenticide exposure) reduce prey to the point that even moderate broods cannot be provisioned. Conservation management through nest box provision and supplementary feeding in crisis years directly improves both brood welfare and adult owl welfare by reducing the energetic cost of provisioning failure. Monitoring nest boxes with cameras provides the data needed to identify when intervention is most needed.