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
Christmas shearwater Christmas shearwater The Christmas shearwater ("Puffinus nativitatis") is a medium-sized shearwater of the tropical Central Pacific. It is a poorly known species due to its remote nesting habits, and it has not been extensively studied at sea either. It is one member of a very ancient lineage of the small "Puffinus" species. Its only close living relative is the Galápagos shearwater ("P. subalaris"). The species was described and given its current binomial name by the American naturalist Thomas Hale Streets in 1877. A genetic analysis using mitochondrial DNA has shown that the closest living relative is the Galápagos shearwater ("Puffinus