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.
Ponta dos Rosais and agricultural areas, with most of the region taken-up by rural activities. Tourists visiting the area are attracted by the diversity of migratory and maritime bird species that nest in the cliffs of the point, including the migratory Corey's Shearwater ("Calonectris diomedea") and Little shearwater ("Puffinus assimilis"), but also the Roseate ("Sterna dougallii") and Common Terns ("Sterna hirundo"). Endemic predator species in these areas include feral cats and dogs, as well as rodents, but the latter limited by local kite species. But, the region is a hothouse of Azorean heather ("Erica azorica") and Forget-me-nots ("Myosotis azorica"). Ponta dos Rosais Ponta