From New Zealand, what are 'Kea's' and 'Kaka's'?
New Zealand kaka genus "Nestor" contains four species: the New Zealand kaka ("Nestor meridionalis"), the kea ("N. notabilis"), the extinct Norfolk kaka ("N. productus"), and the extinct Chatham kaka ("N." sp.). All four are thought to stem from a "proto-kaka", dwelling in the forests of New Zealand five million years ago. Their closest relative is the kakapo ("Strigops habroptila"). Together, they form the parrot family Strigopidae, an ancient group that split off from all other Psittacidae before their radiation. The New Zealand kaka is a medium-sized parrot, measuring in length and weighing from , with an average of . It is closely related
New Zealand kaka from the top of emergent trees. They are very gregarious and move in large flocks often containing kea where present. The New Zealand kaka eats fruits, berries, seeds, flowers, buds, nectar, sap, plants and invertebrates. It uses its strong beak to shred the cones of the kauri tree to obtain the seeds. It has a brush tongue with which it feeds on nectar, and it uses its strong beak to dig out the grubs of the huhu beetle and to remove bark to feed on sap. New Zealand kaka make their nests in hollow trees, laying clutches of 2 to