Bouvet Island of establishing a manned meteorological radio station, but a suitable location could not be found. By then both the flagpole and hut from the previous year had been washed away. The Third "Norvegia" Expedition, led by Hjalmar Riiser-Larsen, arrived the following year and built a new hut at Kapp Circoncision and on Larsøya. The expedition carried out aerial photography of the island and was the first Antarctic expedition to use aircraft. The "Dependency Act", passed by the Parliament of Norway on 27 February 1930, established Bouvet Island as a dependency, along with Peter I Island and Queen Maud Land. The
Bouvet Island penguin, although these were only estimated to be 62,000 in 1989–90. Nyrøysa is the most important colony for penguins, supplemented by Posadowskybreen, Kapp Circoncision, Norvegiaodden and across from Larsøya. Southern fulmar is by far the most common non-penguin bird with 100,000 individuals. Other breeding seabirds consist of Cape petrel, Antarctic prion, Wilson's storm petrel, black-bellied storm petrel, subantarctic skua, southern giant petrel, snow petrel, slender-billed prion and Antarctic tern. Kelp gull is thought to have bred on the island earlier. Non-breeding birds which can be found on the island include the king penguin, wandering albatross, black-browed albatross, Campbell albatross, Atlantic