Madagascar (TV series) in March 2011. In this one-off programme, David Attenborough undertakes a personal journey back to Madagascar to investigate the fate of "Aepyornis", the island's extinct elephant birds. Believed to be the largest birds which have ever lived, evidence of their existence can still be found on the island. Whilst filming "Zoo Quest to Madagascar" in 1961, Attenborough pieced together a complete elephant bird egg from fragments of shell collected for him. "Madagascar" was first announced in March 2009 as a partnership between Animal Planet and BBC Worldwide. Production duties were handled by the BBC Natural History Unit in Bristol, with
Bouvet Island yellow-nosed albatross, sooty albatross, light-mantled albatross, northern giant petrel, Antarctic petrel, blue petrel, soft-plumaged petrel, Kerguelen petrel, white-headed petrel, fairy prion, white-chinned petrel, great shearwater, common diving petrel, south polar skua and parasitic jaeger. The only non-bird vertebrates on the island are seals, specifically the southern elephant seal and Antarctic fur seal, which both breed on the island. In 1998–99, there were 88 elephant seal pups and 13,000 fur seal pups at Nyrøysa. Humpback whale and killer whale are seen in the surrounding waters. Bouvetøya is one of three dependencies of Norway. Unlike Peter I Island and Queen Maud Land,