Historical reference: Do not rely on this information. It is very old. About this collection
Kaka, the New Zealand name for parrots of the genus Nestor, the single species of which(N. meridionalis) varies considerably. One form (N. notabilis) is remarkable for its change from insectivorous to flesh-eating habits. The general plumage is olive-brown, with the crown light grey and the under surface crimson. N. productus, the Port Phillip Nestor, is extinct.