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Newell's shearwater or Hawaiian shearwater (ʻaʻo), (Puffinus newelli) is a seabird in the family Procellariidae. It belongs to a confusing group of shearwaters which are difficult to identify and whose classification is controversial.
Many shearwaters are long-distance migrants, perhaps most spectacularly sooty shearwaters, which cover distances in excess of 14,000 km (8,700 mi) from their breeding colonies on the Falkland Islands (52°S 60°W) to as far as 70° north latitude in the North Atlantic Ocean off northern Norway, and around New Zealand to as far as 60° north latitude in the North Pacific Ocean off Alaska.
Puffinus gravis, great shearwater breeds on islands in the South Atlantic Ocean; ranges in the North Atlantic Ocean to the Arctic Circle; Puffinus pacificus, wedge-tailed shearwater ranges through tropical Pacific Ocean and Indian Ocean; Puffinus bulleri, Buller's shearwater breeds on islands off the coast of New Zealand; ranges across the ...
Its relationships are unresolved. Its closest relatives are probably, but not certainly, the Hawaiian shearwater (Puffinus newelli) and possibly the Manx shearwater (Puffinus puffinus) (Austin, 1996; Austin et al., 2004). It formerly contained the former as a subspecies and was long considered a subspecies of the latter.
Puffinus is a genus of seabirds in the order Procellariiformes that contains about 20 small to medium-sized shearwaters.Two other shearwater genera are named: Calonectris, which comprises three or four large shearwaters, and Ardenna with another seven species (formerly often included within Puffinus).
Calonectris is a genus of seabirds.The genus name comes from Ancient Greek kalos, "good" and nectris, "swimmer".. The genus comprises four large shearwaters.There are two other shearwater genera, Puffinus, which comprises 21 small to medium-sized shearwaters, and Ardenna with 7 larger species.
There are five listed subspecies of the tropical shearwater: [2] Puffinus bailloni nicolae – (Jouanin, 1971): breeds on islands in the northwest Indian Ocean. Puffinus bailloni colstoni – (Shirihai & Christie, 1996): breeds in the Aldabra Islands in the Seychelles. Puffinus bailloni bailloni – (Bonaparte, 1857): Mauritius, Réunion ...
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