Puffinus is a genus of seabirds. They are small to medium-sized shearwaters.
The species in this group are long-winged birds, dark brown or black above, and white to dark brown below. They are pelagic outside the breeding season. They are most common in temperate and cold waters.
They fly with stiff wings, and use a shearing flight technique to move across wave fronts with the minimum of active flight.
