Little blue penguins usually return to the colony at dusk to feed their young, because they gather in small groups, which can provide some defense to prevent predators from catching their young penguins one by one. Their natural enemies are mammals that stare around their nests: mice, short-tailed ferrets and weasels; Adult blue penguin babies still need to be alert to skua and predators at sea.
Baby blue penguins in the wild are sometimes hunted by New Zealand fur seals. Researchers from South Australia's R&D Center have done relevant research and found that nearly 40% of the excreta of South Australia's granite island seals contain the ingredients of Little Blue Goose.