How big are the kakapo?

The kakapo is the world's only flightless parrot, so it is the heaviest of all parrots. It can weigh up to 3.5 kg (7 pounds) for males, and 2 kg (over 4 pounds) for females. Males have been known to exceed 4 kg.

Male kakapo can reach a head to tail length of 60 cm, or 24 inches.