Southern Giant Petrel Home > Seabirds World > Petrels & Shearwaters (world) > Southern Giant Petrel Southern Giant Petrel Macronectes giganteus Feb 19 2019. Southern Ocean, 66S 162E. Mar 1 2019. Southern Ocean, 65S 164E. Feb 15 2019. Macquarie Island, Australia. Feb 15 2019. Macquarie Island, Australia. Feb 28 2019. Southern Ocean, 69S 168E. Feb 20 2019. Southern Ocean, 70S 168E. Feb 20 2019. Southern Ocean, 70S 168E.