Newell's shearwater Newell's shearwater The Newell's shearwater or Hawaiian shearwater ("Puffinus newelli") is a seabird belonging to the genus "Puffinus" in the family Procellariidae. It belongs to a confusing group of shearwaters which are difficult to identify and whose classification is controversial. It was formerly treated as a subspecies of the Manx shearwater ("Puffinus puffinus") and is now often placed in Townsend's shearwater ("Puffinus auricularis"). It is endemic to the Hawaiian Islands It is a fairly small shearwater, in length. The wing is long and the tail is . The bird weighs . The upperparts are black with a brown tinge while
Calonectris Calonectris Calonectris is a genus of seabirds. The genus name comes from Ancient Greek "kalos", "good" and "nectris", "swimmer". The genus comprises three large shearwaters. There are two other shearwater genera. "Puffinus", which comprises about twenty small to medium-sized shearwaters, and "Procellaria "with another four large species. The latter are usually named as "petrels", although they are thought to be more closely related to the shearwaters than to the other petrels. The taxonomy of this group is the cause of some debate, and it is only recently that the Cape Verde shearwater has been split from Cory's shearwater. The species