Original: The nominate subspecies of this parakeet is 29 cm long on average, with a 48 cm wingspan, and weighs 100 g. Females tend to be 10-20% smaller but can only be reliably sexed by DNA blood or feather testing.
Simplified: The parakeet is average 29 cm long, with a 48 cm wingspan, and weighs 100 g. Females tend to be 10-20% smaller, but it is hard to tell the sex apart, unless they test the feather or see the DNAs in the blood.