A yellow-eyed penguin is one of the rarest penguins in the world. The yellow-eyed penguin or hoiho is a penguin native to New Zealand. Previously thought closely related to the little penguin, molecular research has shown it more closely related to penguins of the genus Eudyptes.
Like most other penguins, it is mainly piscivorous, which means they eat fish. This species of penguin is endangered, with an estimated population of 4,000. It is considered one of the world's rarest penguin species. The main threats include habitat degradation and introduced predators. It may be the most ancient of all living penguins.