Translocation of seabirds to restore or establish colonies involves welfare costs during capture and transport that must be justified by long-term conservation benefit.
Seabird translocation welfare involves weighing a clear and immediate welfare cost against a probabilistic and future conservation benefit. The chicks captured and hand-reared during translocation experience significant handling stress and the disruption of normal developmental processes. The welfare justification for this cost rests on the demonstrated effectiveness of translocation in establishing viable colonies in predator-free sites, the conservation necessity of doing so for species experiencing ongoing population decline, and the high welfare cost to the broader population of continued colony failure. Well-designed translocation programmes minimise welfare harm through skilled handling, appropriate housing, minimal necessary human contact, and careful monitoring. The success of established programmes in creating self-sustaining colonies validates the welfare trade-off in those cases, while making careful selection of future translocation targets essential.