 The Falkland Islands Dependencies Survey, which charted the islands in 1946, recommended that the name Duroch be extended to include the entire group of islands.The islands are close to Chile's Bernardo O'Higgins Station at Cape Legoupil.The island group has been identified as an Important Bird Area (IBA) by BirdLife International because they support breeding colonies of several penguin species, including Adélies (800 pairs), chinstraps (9400 pairs) and gentoos (3500 pairs).