 Breeding has been observed on Serventy Island, Gilbert Island, Alexander Island, Suomi Island, Keru Island, Square Island, Stick Island, Gibson Island, Gun Island, Morley Island and Wooded Island.All but the last three of these are considered current breeding sites, and are therefore considered by the Department of Fisheries to have a high conservation value.Little information is available on other marine mammals at the Abrolhos, as no direct research on this subject has been undertaken.