The Kakapo parrot lives in New Zealand is a
unique creature in several ways. Not only is it the world’s heaviest
parrot, weighing up to 9 pounds but it is the world’s only
only flightless parrot,and the only nocturnal one. The bird was
once common on both of New Zealand’s main islands. However, by the
early 1970′s it was thought to have been driven into extinction by such
prolific human-introduced invasive predators as rats and cats, which
killed the helpless young birds in their nests on the ground. Tiny
populations were later found on a couple of smaller, more remote
islands. Despite an intensive program of breeding and protection by the
New Zealanders, currently there are fewer than 150 kakapos left in the
wild—so few that almost all of them have names given to them by
conservationists.
http://www.allaboutwildlife.com/kakapo-parrot
