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shearwater,common name for members of the family Procellariidae, gull-like sea birds related to the petrelpetrel
, common name given various oceanic birds belonging, like the albatross and the shearwater, to the order known commonly as tube-nosed swimmers. There are two families of petrels: the storm petrels (Hydrobatidae) and the diving petrels (Pelecanoididae).
..... Click the link for more information. and the albatross and including the fulmar. Shearwaters are found on unfrozen saltwaters all over the world, with 35 species in North America. They have tubular nostrils, hooked bills enlarged at the tip, short tails, and long, pointed wings. They feed on marine animals and oily matter on the open seas, coming to shore only to breed. Shearwaters are 15 to 25 in. (37.5–62.5 cm) long, dark above and light below—except for the grayish-bellied sooty shearwater, Puffinus griseus, of the Pacific, which migrates across the whole ocean region. Most common in the North Atlantic are the greater shearwater and Cory's shearwater. The slender-billed shearwater of Australia, P. tenuirostris, which also migrates over the entire Pacific, is a game bird known also as muttonbird or Tasmanian squab. The two fulmars, one of the North Atlantic and the other, the silver-gray fulmar, of antarctic regions, have thick, stubby yellow bills. Shearwaters are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
..... Click the link for more information. , subphylum Vertebrata, class Aves, order Procellariiformes, family Procellariidae.
Any of various species of oceanic birds of the genus Puffinus having tubular nostrils and long wings.