South West Mutton Bird Islet should not be confused with South East Mutton Bird Islet.
| South West Mutton Bird Islet | |
| Map: | Australia Tasmania |
| Map Width: | 280 |
| Map Relief: | 1 |
| Label: | South West Mutton Bird Islet |
| Label Position: | left |
| Location: | South western Tasmania |
| Coordinates: | -43.4167°N 203°W |
| Archipelago: | Mutton Bird Islands Group |
| Waterbody: | Southern Ocean |
| Area Ha: | 0.52 |
| Elevation M: | 28 |
| Country: | Australia |
| Country Admin Divisions Title: | State |
| Country Admin Divisions: | Tasmania |
| Country Admin Divisions Title 1: | Region |
| Country Admin Divisions 1: | South West |
| Population: | Unpopulated |
South West Mutton Bird Islet is a dome-shaped unpopulated islet located close to the south-western coast of Tasmania, Australia. Situated some south of where the mouth of Port Davey meets the Southern Ocean, the 0.52ha islet is one of the eight islands that comprise the Mutton Bird Islands Group. The South West Mutton Bird Islet is part of the Southwest National Park and the Tasmanian Wilderness World Heritage Site.[1] [2]
The highest point of Mutton Bird Island is above sea level.
The islet is part of the Port Davey Islands Important Bird Area, so identified by BirdLife International because of its importance for breeding seabirds.[3] Recorded breeding seabird species are the short-tailed shearwater, (1000 pairs) and fairy prion (200 pairs).[2]