Cave: Searching for Australia's Forgotten Beasts - Day 3 - BirdsVideo | Updated 10 years ago The August 2011 expedition to the Nullarbor caves is a collaborative effort between the Western Australian Museum and the Flinders University to search for Megafauna fossils in this remote and isolated area. This video explores the diversity of bird fossils in the cave, and they even find a live kestrel that has recently fallen into the cave trap.