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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.
Balearic shearwater, Puffinus mauretanicus CR; Bryan's shearwater, Puffinus bryani CR; Black-vented shearwater, Puffinus opisthomelas NT; Townsend's shearwater, Puffinus auricularis CR; Newell's shearwater, Puffinus newelli CR; Rapa shearwater, Puffinus myrtae CR; Fluttering shearwater, Puffinus gavia LC; Hutton's shearwater, Puffinus huttoni ...
The Rapa shearwater (Puffinus myrtae), is a rare seabird of the tropics from the family Procellariidae. It breeds on the surrounding islets of Rapa in the Austral Islands of French Polynesia where it is known locally as the kaki kaki. [2] The Rapa shearwater was first described in 1959 as a subspecies of the little shearwater. [3]
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.
Hutton's shearwater (Puffinus huttoni) breeds in burrows on the sea-facing mountainside of the Kaikoura Ranges on South Island, New Zealand. The colonies are 1,200–1,800 m (3,900–5,900 ft) above sea level at a distance of 12–18 km (7.5–11.2 mi) from the coast.
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).
Puffinus auricularus newelli breeds Kauai Puffinus opisthomelas , black-vented shearwater breeds on islands off the west coast of Baja California ; ranges in adjacent Mexican waters Puffinus gavia , fluttering shearwater breeds on the islands off the coast of New Zealand; ranges to Australia and Vanuatua