It is the only nocturnal parrot and also the heaviest in the world, weighing up to 3.5 kilograms (8 lbs). The kakapo is a unique parrot species because it can´t fly!
It’s probably the longest-lived bird species in the world; the low adult mortality rate suggests a life expectancy of 90 years
After 20-30 booms they then make a high-pitched metallic call, or ‘ching’.
