Landau, December 5, 2025.
In recent years, the Humboldt penguin population has been reduced by environmental pressures such as climate change, overfishing, habitat destruction, and natural events to an extent that has not yet been fully clarified. In 2023, a large number of seabirds breeding in colonies in South America died from the highly pathogenic H5N1 bird flu. The extent to which Humboldt penguins were reduced by bird flu is unclear, as the dead birds were not examined. The El Niño of 2023/2024 was one of the strongest since records began. Due to a lack of food, Humboldt penguins were unable to breed in large parts of their range in 2023 and 2024.