 A key part of the Recovery Plan is the supplementary feeding of females . The kakapo breeds only once every two to five years , when a certain type of plant species , primarily Dacrydium cupressinum ( rimu ) , produces protein @-@ rich fruit and seeds . Observations of the relationship between intermittent breeding and the plant 's mast year help biologists choose which suitable supplementary foods to increase kakapo breeding frequency . In 1989 , six preferred foods ( apples , sweet potatoes , almonds , Brazil nuts , sunflower seeds and walnuts ) were supplied ad libitum each night to 12 feeding stations . Males and females ate the supplied foods , and females nested on Little Barrier Island in the summers of 1989 – 91 for the first time since 1982 , although nesting success was low . 
 A key part of the Recovery Plan <a href='drop_aux' title='1'><mark>is</mark></a>the supplementary feeding of females . The kakapo <a href='uninflect' title='2'><mark>breeds</mark></a> only once every two to five years , when a certain type of plant species , primarily Dacrydium cupressinum ( rimu ) , <a href='uninflect' title='3'><mark>produces</mark></a> protein @-@ rich fruit and seeds . Observations of the relationship between intermittent breeding and the plant <a href='null_genetive' title='4'><mark>'s</mark></a>mast year help biologists choose which suitable supplementary foods to increase kakapo breeding frequency . In 1989 , six preferred foods ( apples , sweet potatoes , almonds , Brazil nuts , sunflower seeds and walnuts ) <a href='uninflect' title='5'><mark>were</mark></a> supplied ad libitum each night to 12 feeding stations . Males and females ate the supplied foods , and females nested on Little Barrier Island in the summers of 1989 – 91 for the first time since 1982 , although nesting success was low . 
A key part of the Recovery Plan the supplementary feedin of females . da kakapo breed only once every 2 to five yrs , when a certain type of plant species , primarily Dacrydium cupressinum ( rimu ) , produce protein @-@ rich fruit and seeds . Observations of the relationship between intermittent breeding and tdaplant  mast year help biologists claim which suitable supplementary foods to increase kakapo breeding frequency . In 1989 , six preferred foods ( apples , sweet potatoes , almonds , Brazil nuts , sunflower seeds and walnuts ) was supplied ad libitum each nite to 12 ffeedinstations . Males and females ate the supplied foods , and females nested on Little Barrier Island in the summers of 1989 – 91 for thdairst time since 1982 , although nesting success was low .