According to the key, which statement best describes Fiordland crested penguins? A. They have only black and white feathers and live north of the equator. B. They have yellow or orange feathers on top of their heads and no bare skin around the base of their beaks. C. They have only black and white feathers and live south of the equator. D. They have yellow or orange feathers on top of their heads and bare skin around the base of their beaks.