Shearwaters are medium-sized long-winged seabirds in the petrel family Procellariidae. They have a global marine distribution, but are most common in temperate and cold waters, and are pelagic outside
Puffinus gravis PCCA20070623 3738B
Cory's shearwater in flight, showing the wingtip 'shearing' the sea surface
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
Shearwater
…Shearwaters are medium-sized long-winged seabirds in the petrel family Procellariidae. They have a global marine distribution, but are most common in temperate and cold waters, and are pelagic outside the breeding…
Thalassarche bulleri in flight 3 SE Tasmania
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.