Atlantic puffins face welfare threats from climate-driven changes in sandeel populations that reduce chick survival and adult condition.
Puffin chick starvation causes prolonged suffering before death from dehydration and energy failure. Adult puffins that cannot provision chicks adequately experience the stress of failed breeding seasons repeatedly. The welfare impact of climate change on puffins is inseparable from its conservation impact - addressing food availability through marine protected areas and sustainable fisheries management reduces suffering while protecting populations.