Macaroni penguin

These penguins live in the subantarctic zone of the Antarctic Ocean, especially in the sub-Antarctic. During the breeding season, it settles on a rocky island to lay eggs, and then raise its young. It then returns to live at sea for a few weeks before returning to land to change its plumage. It is necessarily a period of fasting since he can no longer go to sea to fish. The penguin must therefore survive on its fat reserves and it loses a lot of weight during this seasonal moult.