Atlantic puffin populations are declining due to climate-driven changes in prey fish availability, with welfare implications for breeding adults and chicks.
Puffin chicks that do not receive enough food from foraging parents face starvation - a prolonged welfare suffering that cascades into colony-level decline. Climate change is driving the prey availability changes that cause this starvation. Each climate action that slows warming reduces the welfare impact on individual puffin chicks across UK breeding colonies.