A blue bonnet parrot of the endangered subspecies Northiella (or Psephotus) haematogaster narethae, which is confined to south-eastern parts of Western Australia.
Origin
1920s; earliest use found in The Bulletin.
Definition of Naretha parrot in US English:
Naretha parrot
(also Naretha blue bonnet)
noun
A blue bonnet parrot of the endangered subspecies Northiella (or Psephotus) haematogaster narethae, which is confined to south-eastern parts of Western Australia.