Kakapo low. Supplementary feeding affects the sex ratio of kakapo offspring, and can be used to increase the number of female chicks by deliberately manipulating maternal condition. During the winter of 1981, only females lighter than were given supplementary feeding to avoid raising their body condition, and the sex ratio results in 1982 were close to parity, eliminating the male-biased sex ratios in the unrestricted feeding. Today commercial parrot food is supplied to all individuals of breeding age on Whenua Hou and Anchor. The amount eaten and individual weights are carefully monitored to ensure that optimum body condition is maintained. Kakapo
Rakiura National Park the national park. Many native birds can be found within the park, and Rakiura offers perhaps the best opportunity anywhere in New Zealand for viewing kiwi in the wild. This is in part due to the absence of stoats and ferrets. Certain coastal areas of this park are breeding areas for the endangered yellow-eyed penguin. Weka, a flightless and curious bird species, can only be found on offshore islands. In the 1970s, kakapo were found in the Tin Range at a time when it was thought that the species was nearly extinct. The kakapo have been transferred to nearby Codfish