The moa were eleven species of flightless birds endemic to New Zealand ranging in size from about the height of a chicken, to the largest species which was twelve feet tall. Most, if not all, species of moa died out due to over-hunting by the Māori and habitat decline before European discovery and settlement. Could a surviving population of gigantic birds be hiding in New Zealand? Moa sightings have occurred fairly regularly in the remotest parts of New Zealand from a variety of sources.
Kakapo - One of the rarest birds of all is New Zealand's kakapo. which is flightless Only 124 animals remain in the wild—the species has been largely wiped out by introduced predatory mammals such as feral cats.