 To monitor the kakapo population continuously , each bird is equipped with a radio <unk> . Every known kakapo , barring some young chicks , has been given a name by Kakapo Recovery Programme officials . It is an affectionate way for conservation staff to refer to individual birds , and a stark reminder of how few remain . Artificial incubation of eggs and hand @-@ raising of chicks have often been used to improve the condition of the eggs and chicks . In November 2005 , the population comprised 41 females and 45 males , including four fledglings ( 3 females and 1 male ) bred in 2005 . The oldest known kakapo , " Richard Henry " , was thought to be 80 years old at the time of his death in December 2010 . 
