PenquinMan

Rats eat baby penguins and penguin eggs.  To answer your question.  I got this information from the article: Comaprison of population numbers of yello-eyed penguins, Megadyptes antipodes, on Steward Island and on adgacent cat-free islands, by Melanie Massaro and David Blair, and the artical Ble Penquin (Eudyptula minor) nest distribution and breading success on Otago Peninsula, 1992 to 1998 by Lyndon Perriman and Harald Steen.

Thank you for sending me all the great comments.