Round Top Island is a 6.25 hectare island in south-eastern Australia. Its highest point is 165m above sea level. It is part of the Maatsuyker Island Group, lying close to the southern end of the south-western coast of Tasmania. It is also part of the Southwest National Park, and thus within the Tasmanian Wilderness World Heritage Site.[1] The island is part of the Maatsuyker Island Group Important Bird Area, identified as such by BirdLife International because of its importance as a breeding site for seabirds.[2]
Recorded breeding seabird species are the Short-tailed Shearwater (8900 pairs), Fairy Prion (9300 pairs), Common Diving-Petrel (8700 pairs), Pacific Gull and Silver Gull. The Metallic Skink and Tasmanian Tree Skink are present.[1]