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.
Frederick Wollaston Hutton in 1891. He was founding President of the Royal Society of New Zealand from 1904 to his death in 1905; he was followed by Sir James Hector. He worked successively at the Colonial Museum, Wellington (1871–1873); Otago Museum, Dunedin (1877–1879); and the Canterbury Museum, Christchurch (1887–1905) Hutton died on the return voyage from England on 27 October 1905, and was buried at sea off Cape Town, South Africa. He is commemorated in the Hutton Memorial Medal and Research Fund, awarded for scientific works bearing on the zoology, botany or geology of New Zealand. Hutton's shearwater ("Puffinus huttoni"), a sea bird,