Birds molt in different ways. Some species undergo a gradual feather change, allowing them to continue flying. Cranes, on the other hand, are particularly skittish during their molting period and will flee at the slightest hint of danger, unable to fly at that time. Woodpeckers molt in a way that allows them to maintain their foraging habits.
But when it comes to penguins, the molting process is quite different. They shed all their feathers at once and then stand still for about two weeks, waiting for their bodies to be covered with new plumage.
“Look at that penguin on vacation,” joke the winterers in Antarctica, watching the molting bird.