Any one of numerous species of long-winged oceanic birds of the genus Puffinus and related genera. They are allied to the petrels, but are larger. The Manx shearwater (P. Anglorum), the dusky shearwater (P. obscurus), and the greater shearwater (P. major), are well-known species of the North Atlantic. See Hagdon.
long-winged oceanic bird that in flight skims close to the waves
Shearwaters are medium-sized long-winged seabirds. There are more than 20 species of shearwaters, a few larger ones in the genus Calonectris and many smaller species in the genus Puffinus. The Procellaria petrels were formerly believed to belong into this group, but are only distantly related based on more recent studies, while the Pseudobulweria and Lugensa "petrels" are more closely related (Bretagnolle et al., 1998; Nunn & Stanley, 1998).