The Chalky, Big Green and Badger Island Groups Important Bird Area lies in eastern Bass Strait west of Flinders in the Furneaux Group of Tasmania, Australia. Its component islands collectively form a 21 km2 Important Bird Area (IBA) which supports more than 1% of the global populations of the Cape Barren goose, black-faced cormorant, little penguin, white-faced storm-petrel, short-tailed shearwater, Pacific gull, and sooty oystercatcher. It also supports significant numbers of fairy terns.