What is a small parrot native to the Australian outback

A species of small parrot is called a budgie, they can be green and blue, some are sold in et stores called parakeets.

the wild birds found in Australia including its outlying islands and territories, but excluding the Australian Antarctic Territory. The outlying islands covered include: Christmas, Cocos (Keeling), Ashmore, Torres Strait, Coral Sea, Lord Howe, Norfolk, Macquarie and Heard/McDonald. The list includes introduced species, common vagrants and recently extinct species. It excludes extirpated introductions some very rare vagrants (seen once) and species only present in captivity. Eight hundred and forty-two extant species are listed.