Staffan Widstrand / Raja Shelduck (Tadorna rajah) two sanding on branch, one standing on one leg, Raja Ampat, Western Papua, Indonesian New Guinea

Staffan Widstrand / Raja shelduck (Tadorna rajah) Raja Ampat, Western Papua, Indonesian New Guinea

Staffan Widstrand / Raja shelduck (Tadorna rajah), Raja Ampat, Western Papua, Indonesian New Guinea

Barry Mansell / Radjah shelduck (Radjah radjah / Tadorna radjah). Captive. Occurs in Australia, Indonesia and Papua New Guinea.

Rod Williams / Black backed / radjah shelduck (Tadorna radjah radjah) New Guinea, Moluccan Islands. Captive.

Andrew Parkinson / Shelduck {Tadorna tadorna} adult male having seen four of his chicks taken by gulls, launches a sustained and near fatal attack on a Lesser black-backed gull. Skomer Island, Wales, UK

Etienne Littlefair / Radjah shellducks (Tadorna radjah) pair foraging in shallow water, Pine Creek, Northern Territory, Australia.

Joel Sartore / Photo Ark / Raja shelduck (Radjah radjah rufitergum) quacking, portrait, Sylvan Heights Bird Park. Captive, occurs in Australia and New Guinea.

Joel Sartore / Photo Ark / Raja shelduck (Radjah radjah rufitergum) portrait, Sylvan Heights Bird Park. Captive, occurs in Australia and New Guinea.

Joel Sartore / Photo Ark / Black-backed radjah shelduck (Radjah radjah) male profile of head, WWT Slimbridge. Captive.