Burdekin duck noun2 •(Australia) The bird Tadorna radjah, a protected species within Australia.The Burdekin duck is also large, and bronze and white in colour. They are found in large numbers on the River Burdekin, from which they derive their name. — 1870 •(Australia, no longer used) A food dish made from leftovers or ingredients to hand, usually including corned beef.even the exotic-sounding "Burdekin duck" consists of nothing more than slices of cold beef fried in batter. — 1977 formsBurdekin ducks