Audubon's shearwater ill-resolved clade also including such species as the little shearwater, the Manx shearwater ("P. puffinus") or the black-vented shearwater ("P. opisthomelas"). The little-known Heinroth's shearwater ("P. heinrothi") is sometimes considered a subspecies of either Audubon's or the little shearwater. Though it is likely to be another member of that close-knit group, its actual relationships remain uncertain due to lack of specimens. Audubon's shearwater itself has around 10 subspecies. Several have at one time or another been suggested to constitute separate species. For example, the Galápagos Islands population has turned out to be a very distinct species, the Galápagos shearwater ("P.
Muttonbirding on 36 islands, known as the Titi or Muttonbird Islands, around Rakiura (Stewart Island), is managed entirely by Rakiura Māori. There is some evidence that this harvest has been occurring since at least the 17th century. Muttonbird may refer to various seabirds, particularly petrels in the genus "Puffinus", called shearwaters, where the young birds are harvested for food and oil by being extracted by hand from the nesting burrows before they fledge. Some species are: Muttonbirding Muttonbirding is the seasonal harvesting of the chicks of petrels, especially shearwater species, for food, oil and feathers by recreational or commercial hunters. Such