Kakapo the reason for its massive decline since the introduction of dogs, cats and mustelids (see "Conservation: Human impact"). The kakapo is the only species of flightless parrot in the world, and the only flightless bird that has a lek breeding system. Males loosely gather in an arena and compete with each other to attract females. Females listen to the males as they display, or "lek". They choose a mate based on the quality of his display; they are not pursued by the males in any overt way. No pair bond is formed; males and females meet only to mate. During
Kakapo established in 1995. The New Zealand Department of Conservation replaced the Wildlife Service for this task. The first action of the plan was to relocate all the remaining kakapo to suitable islands for them to breed. None of the New Zealand islands were ideal to establish kakapo without rehabilitation by extensive re-vegetation and the eradication of introduced mammalian predators and competitors. Four islands were finally chosen: Maud, Hauturu/Little Barrier, Codfish and Mana. Sixty-five kakapo (43 males, 22 females) were successfully transferred onto the four islands in five translocations. Some islands had to be rehabilitated several times when feral cats, stoats