Kakapo "The Unnatural History of the Kakapo" won two major awards at the Reel Earth Environmental Film Festival. Two of the most significant documentaries, both made by NHNZ, are "Kakapo – Night Parrot" (1982) and "To Save the Kakapo" (1997). The BBC's Natural History Unit also featured the kakapo, including a sequence with Sir David Attenborough in "The Life of Birds". It was also one of the endangered animals Douglas Adams and Mark Carwardine set out to find for the radio series and book "Last Chance to See". An updated version of the series has been produced for BBC TV, in
Flightless bird 85–92 days while females feed. They can go up to a week without eating and survive only off fat stores. The emu has been documented fasting as long as 56 days. If no continued pressures warrant the energy expenditure to maintain the structures of flight, selection will tend towards these other traits. Many flightless birds are extinct; this list shows species that are either still extant, or became extinct in the Holocene (no more than 11,000 years ago). Extinct species are indicated with a dagger (†). A number of species that are suspected, but not confirmed to be flightless, are