Puffins are among Britain's most beloved seabirds, but face serious threats from climate change affecting their food supply. Individual welfare and breeding success are deteriorating at some colonies as warming seas shift prey fish distributions.
Puffin welfare is being progressively compromised by climate change through prey availability decline. Individual breeding adults forced to fly further for fewer fish accumulate energy deficits while also under-provisioning their chicks. Chick starvation is a prolonged welfare harm. The slow life history of puffins means that poor breeding seasons have long-lasting population consequences. Climate mitigation is the long-term welfare solution, while sand eel fishery restrictions and marine protected areas around colonies provide more immediate protection.