Procellariiformes is an order of seabirds that comprises four families; the albatrosses, the petrels and shearwaters, and two families of storm petrels. Formerly called Tubinares and still called tube
Pterodroma macroptera from Godman's Monograph of the Petrels, 1907–1910
The southern royal albatross is one of the largest of the Procellariiformes.
A white-faced storm petrel moves across the water's surface in a series of bounding leaps.