The Kakapo Parrot of New Zealand is the heaviest parrot in the world, the only flightless parrot, and the only nocturnal parrot known. The kakapo is critically endangered - in November 2009 only 124 remained in the wild.
World's rarest bird pictures: A dance in search of a partner
**Kakapo - One of the rarest birds of all is New Zealand's flightless Kakapo. Only 124 animals remain in the wild—the species has been largely wiped out by introduced predatory mammals such as feral cats. Efforts are being made to save the species.