Royal penguin Eudyptes schlegeli census, Macquarie Island, 1984

The total number of Royal Penguins breeding on sub-Antarctic Macquarie Island is estimated at 848,719 pairs based on two methods of estimation. The sizes and locations of all 57 colonies are given as a baseline for future changes in the species abundance. Current estimates of the sizes of two colonies are compared with historical estimates made by the Australian Antarctic Expedition in 1912-13. Note that the total estimate is included in the Inventory of Antarctic Seabirds dataset as a single record.