him on a beach. He is hungry. He is in a bad condition.
People take him to a zoo. The penguin gets better.
Penguins must change their feathers. First, they let the old feathers go. Then, new feathers can grow. They are without feathers for 2-3 weeks.
This is a problem for penguins. They cannot fish without feathers. They must prepare for the moulting season. They must eat a lot of food before it.
The penguin in New Zealand is 3.3 kilograms heavy. Every day, he eats 1.2 kilograms of fish. He must be 5.5 kilograms heavy.