Britain's seabird colonies are some of the largest in Europe. Understanding the welfare threats they face from climate change, fisheries, and pollution is essential for their protection.
Seabird colony welfare is closely tied to marine ecosystem health. Colonies that fail to find sufficient prey experience breeding failure - adults exhaust themselves on extended foraging trips while chicks starve in the nest. The welfare of individual chicks dying of starvation in a colony is real, even if invisible to observers. Adult seabirds that experience repeated breeding failure may suffer what could be described as behavioural indicators of failure - returning to abandoned nests, reduced colony engagement. Protecting seabird welfare requires action at multiple scales: reducing fishing pressure on sand eels, eliminating invasive predators from nesting islands, and addressing climate change driving prey depletion.