Chinstrap penguins (Pygoscelis antarctica). This large group have just returned from sea. They are beginning the long walk to their nesting colony high on the caldera of an extinct volcano. These birds feed almost exclusively on krill. They inhabit the Antarctic and Antarctic islands. They migrate north to overwinter at sea, although some vagrants have been found as far north as Australia. Photographed at Bailey Head, Deception Island, Antarctic Peninsular.
