Puffin colonies on UK islands face multiple welfare challenges from climate change including prey fish decline, increased storminess, and shifting breeding phenology that affect chick survival.
Puffin welfare is directly threatened by climate change through food insecurity and increased storm exposure. Adult puffins that cannot find sufficient sand eels to feed chicks face the behavioural conflict of abandoning chicks or continuing to search depleted waters. Puffin chicks that are underfed experience hunger stress and fail to gain the weight needed for successful fledging. Storm-struck adult puffins wash ashore in large numbers during severe winter storms, suffering exhaustion, hypothermia, and injury. The welfare of these individuals, and the broader population-level decline driven by climate change, make puffin conservation an important element of climate action.