African penguins are critically endangered with fewer than 50,000 individuals, facing oil spills, prey scarcity, and nest site competition from cape fur seals.
Oil coating destroys feather insulation causing rapid hypothermia in cold South Atlantic waters. Cleaning oil is stressful for birds requiring weeks of treatment. Prey scarcity forces breeding adults to forage further reducing chick feeding frequency. Chicks that are underfed face starvation and reduced immune function. Cape fur seal expansion at some colonies increases disturbance and predation pressure.