The Regent Parrot is a slim parrot with a long, dusky tapering tail and back-swept wings. It is mostly yellow, with blue-black wings and tail. There is a prominent yellow shoulder patch and red patches in the wings, which show up against the dark wings in flight. The bill is deep red or pink. Females and juveniles are duller olive-green with pinkish, duller wing patches. The Regent Parrot's distinctive call is often heard long before the birds appear. This species is also known as Black-tailed, Black-throated or Marlock Parrot or Smoker.