Seabirds ingesting plastic debris experience starvation, toxicological harm, and physical injury, with all major seabird species now affected globally.
Seabirds dying from plastic ingestion experience a slow, welfare-damaging decline. A stomach full of plastic provides no nutrition, creating a paradox of feeling full while starving. Sharp fragments cause physical injuries that become infected. Parent birds feeding plastic to chicks — mistaking colourful fragments for food — pass these welfare harms to the next generation. Albatross chicks on remote Pacific atolls die with stomachs full of plastic they have never encountered in their own foraging. The welfare solution requires reduction at source: plastic entering ocean ecosystems must decrease dramatically. Individual consumer plastic reduction and support for systemic packaging reform both contribute to this.