We can ID this penguin as a Yellow-eyed Penguin by the yellow on it's face (mostly eye, but parts of face and neck may be yellow), pink legs, dark slate-grey upperparts and top of flippers, white underparts and dark chin.
The Yellow-eyed Penguin is endemic to New Zealand and is the only extant member of the genus Megabytes.
The Yellow-eyed Penguin is a new species to our Photographic Life List, which now stands at 757.