Radjah Shelduck
(also Burdekin duck)
Radjah (prev. Tadorna) radjah
The Radjah Shelduck is native to coastal waters (especially mangroves and brakish estuaries) of Australasia/Pacific.
subspecies Black-backed or Moluccan Radjah Shelduck
(Radjah radjah radjah).
Male and female have similar plumage.