 Kakapo diet changes according to the season . The plants eaten most frequently during the year include some species of Lycopodium ramulosum , Lycopodium fastigium , Schizaea fistulosa , Blechnum minus , Blechnum procerum , Cyathodes juniperina , Dracophyllum longifolium , Olearia colensoi and Thelymitra venosa . Individual plants of the same species are often treated differently . Kakapo leave conspicuous evidence of their feeding activities , over feeding areas that range between 10 by 10 metres ( 30 ft × 30 ft ) and 50 by 100 metres ( 160 ft × 330 ft ) per individual . Kakapo feeding grounds almost always host manuka and yellow silver pine scrubs . 
