Eillium Island is a small island lying 3 km northwest of Mackenzie Peninsula, the westernmost peninsula on Laurie Island, South Orkney Islands. The IBA qualifies on the basis of the concentration of seabirds present (in particular Chinstrap Penguin (Pygoscelis antarctica)).
The nearest research station is Orcadas (ARG) which is located less than 10 km to the southeast of the IBA. Orcadas operates year-round with around 45 personnel present in summer and 14 in winter (COMNAP, Antarctic Facilities, accessed 01/09/2010).
Approximately 21 400 pairs of Chinstrap Penguin were breeding on Eillium Island in 1983 (Poncet & Poncet 1985).
Non-bird biodiversity: None known.
BirdLife International (2020) Important Bird Areas factsheet: Eillium Island. Downloaded from http://www.birdlife.org on 21/10/2020.