This Marine IBA is identified using both tracking data and seaward extensions around breeding colonies. It falls within the Australia Exclusive Economic Zone (EEZ) and the Indian Ocean, Eastern FAO ocean region. The site covers an area of 16903 km2 and borders the coastline. The depth ranges from 0 to 125 m, with a mean annual wind speed of 2.35 m/s and mean annual sea surface temperature falls between 13.31 and 15.18 °C.
7 species trigger IBA criteria at this Marine IBA. BirdLife analyses of tracking data estimates that 2416-4413 individuals of Black-browed Albatross (EN) from Iles Kerguelen are present at the site during the Non-breeding (Apr-Sep) life-history stage. 942-19743 individuals of Shy Albatross (NT) from Albatross Island are present at the site during the Brood-guard (Dec-Jan) and Incubation (Sep-Dec) life-history stages. Seaward extensions around breeding colonies; Albatross Island & Black Pyramid Rock, Hunter Island Group, King Island, Robbins Passage & Boullanger Bay include key near-colony areas for breeding populations of Fairy Tern (VU) 655-745 individuals, Short-tailed Shearwater (LC) 6027507-6963675 individuals, Black-faced Cormorant (LC) 1020-1020 individuals and Australasian Gannet (LC) 28097-53383 individuals.
BirdLife International (2020) Important Bird Areas factsheet: Hunter Island Group, King Island, Robbins Passage & Boullanger Bay / Albatross Island & Black Pyramid Rock - Marine. Downloaded from http://www.birdlife.org on 13/08/2020.