Lots of cave paintings in Europe depict animals now extinct. Australian researchers have recently identified a rock painting as a depiction of the extinct thunder duck Genyornis:
Scientists say an Aboriginal rock art depiction of an extinct giant bird could be Australia's oldest painting.
The red ochre painting, which depicts two emu-like birds with their necks outstretched, could date back to the earliest days of settlement on the continent.
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Archaeologist Ben Gunn said the giant birds became extinct more than 40,000 years ago.
OK, it's not strictly a duck, it's a stem anseriform. It could be the oldest painting anywhere.
