Rockhopper penguin positions and islands became surrounded by subtropical water masses, resulting in a split between Northern and Southern rockhopper penguins. Many advance and retreat cycles of Patagonian icecaps during the late Pleistocene may have created a barrier to gene flow between Southern Pacific and Southern Atlantic populations, causing a split between Southern and Eastern rockhopper populations. Adult Rockhopper penguins have no land-based predators. They are eaten when at sea by leopard seals, fur seals, killer whales and blue sharks. Chicks and eggs are eaten by many birds including giant petrels, skuas, sheathbills and various types of gulls. Although the rockhopper penguin
Foundling-Bird and told the cook what they had seen, and she scolded them for not bringing back the chandelier. The cook set out herself. Fundevogel turned into a pond and Lenchen a duck on it. The cook knelt down to drink up the pool, but Lenchen caught her head and drew her into the pond to drown. The children went safely home again. Foundling-Bird Foundling-Bird is a German fairy tale collected by the Brothers Grimm, number 51. It is Aarne–Thompson type 313A, the girl helps the hero flee, and revolves about a transformation chase. Others of the type include "The Master