It is part of Tasmania’s Great Dog Island Group, lying in eastern Bass Strait between Flinders and Cape Barren Islands in the Furneaux Group.
It is the site of a long-term, ongoing study of short-tailed shearwaters.
Apart from the shearwaters, recorded breeding seabird species are little penguin, white-faced storm-petrel, Pacific gull and Caspian tern.
The southern grass skink inhabits the island and occasional visits are made by white-lipped snake, lowland copperhead and rakali.
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