Also known as the Radjah Shelduck, Burdekin ducks are found in coastal northern Australia. They mainly keep to brackish waters, mudbanks and mangrove-fringed mouths of tropical rivers. During the wet season they also visit inland freshwater swamps and lagoons. They begin to feed from late afternoon, and their diet includes molluscs, insects, algae and sedges. Eggs are laid in a nest that consists only of some self-supplied down feathers.