The island has been identified by BirdLife International as an Important Bird Area (IBA) because it supports globally significant numbers of bridled (up to 10,000 individuals) and roseate terns (up to 30,000). The 9 ha IBA includes the other East Bremer Islets where the roseate tern colony sometimes relocates, and where large numbers of bridled terns nest regularly.[1] There are also up to 10,000 nesting crested terns and up to 300 nesting common noddies, for which the IBA is the only known breeding site in the Northern Territory, as well as some nesting silver gulls. Tern eggs are frequently harvested by the Aboriginaltraditional owners of the islands.[2]