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Gadfly petrel
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Gadfly petrel : ウィキペディア英語版
Gadfly petrel

The gadfly petrels are seabirds in the bird order Procellariiformes. These medium to large petrels feed on food items picked from the ocean surface.
The short, sturdy bills of the ''Pterodroma'' species in this group, about 35 altogether, are adapted for soft prey taken at the surface; they have twisted intestines for digesting marine animals which have unusual biochemistries.
Their complex wing and face marking are probably for interspecific recognition.
These birds nest in colonies on islands and are pelagic when not breeding. One white egg is laid usually in a burrow or on open ground. They are nocturnal at the breeding colonies.
While generally wide-ranging, most ''Pterodroma'' species are confined to a single ocean basin (e.g. Atlantic), and vagrancy is not as common amongst ''Pterodroma''s as it is in some other seabird species (c.f. the Storm-Petrels Hydrobatidae).
==Species in taxonomic order==
The taxonomy of the gadfly petrels is being refined at the moment. Several genera have been split off over time, as they are closer to the procellarine and ''Puffinus'' shearwaters. Some subspecies have been raised to full species rank. The arrangement given here is traditional, but annotates the changes proposed by Austin (1998)〔 and Bretagnolle ''et al.'' (1998).〔 For the current taxonomy, see also Brooke (2004).〔
* ''Genus Pterodroma''
*
* ''Pterodroma baraui'', Barau's petrel (Indian Ocean basin species)
*
* ''Pterodroma arminjoniana'', Trindade petrel (Atlantic Ocean basin species with eccentric breeding locality in the Indian Ocean-Round Island, Mauritius)
*
* ''Pterodroma heraldica'', herald petrel – recognized by the IOC and Clements.〔(Proposed Splits (PS) and Newly Described Species (NEW) that are candidates for addition to the IOC World List ). worldbirdnames.org〕 However, the SACC has not recognized the split yet.
Split from ''Pterodroma arminjoniana'' (Pacific Ocean basin species)
*
* ''Pterodroma externa'', Juan Fernandez petrel (Pacific Ocean basin species)
*
* ''Pterodroma neglecta'', Kermadec petrel (Pacific Ocean basin species with eccentric breeding locality in the Indian Ocean-Round Island, Mauritius)
*
* ''Pterodroma phaeopygia'', Galapagos petrel (Pacific Ocean basin species)
*
* ''Pterodroma sandwichensis'', Hawaiian petrel (Pacific Ocean basin species)
*
* ''Pterodroma atrata'', Henderson petrel (Pacific Ocean basin species)
*
* ''Pterodroma alba'', Phoenix petrel (Pacific Ocean basin species)
*
* ''Pterodroma feae'', Fea's petrel (Atlantic Ocean basin species)
*
* ''Pterodroma desertae'', Desertas petrel (disputed) (Atlantic Ocean basin species)
*
* ''Pterodroma madeira'', Zino's petrel or Madeira petrel (Atlantic Ocean basin species)
*
* ''Pterodroma'' sp., Canary Islands petrel, (prehistoric) – possibly extirpated population of extant species
*
* ''Pterodroma mollis'', soft-plumaged petrel (Atlantic Ocean, Indian Ocean and margins of Western Pacific Ocean)
*
* ''Pterodroma cahow'', Bermuda petrel (Atlantic Ocean basin species)
*
* ''Pterodroma hasitata'', black-capped petrel (Atlantic Ocean basin species)
*
* ''Pterodroma caribbaea'', Jamaica petrel, (possibly extinct) (Atlantic Ocean basin species)
*
* ''Pterodroma incerta'', Atlantic petrel (Atlantic Ocean basin species)
*
* ''Pterodroma lessonii'', white-headed petrel (cicrumpolar in the Southern Ocean)
*
* ''Pterodroma magentae'', Magenta petrel (Pacific Ocean basin species, but poorly known)
*
* ''Pterodroma macroptera'', great-winged petrel (Indian and Atlantic basin species)
*
* ''Pterodroma solandri'', providence petrel (Pacific Ocean basin species)
*
* ''Pterodroma ultima'', Murphy's petrel (Pacific Ocean basin species)
*
* ''Pterodroma'' cf. ''leucoptera'', Mangareva petrel, (possibly extinct)
*
* ''Pterodroma cervicalis'', white-necked petrel (Pacific Ocean basin species)
*
* ''Pterodroma occulta'', Vanuatu petrel or Falla's petrel (Pacific Ocean basin species)
*
*
* Split from ''Pterodroma cervicalis''
*
* ''Pterodroma imberi'', Imber's petrel, (extinct)
*
* ''Pterodroma'' sp., Henderson Island petrel, (prehistoric)
*
* ''Pterodroma jugabilis'', O'ahu petrel, (prehistoric)
*
* ''Pterodroma rupinarum'', large Saint Helena petrel, (extinct)
*''Subgenus ''Cookilaria''〔
*
* ''Pterodroma cookii'', Cook's petrel (Pacific Ocean basin species)
*
* ''Pterodroma pycrofti'', Pycroft's petrel (Pacific Ocean basin species)
*
* ''Pterodroma defilippiana'', De Filippi's petrel or Masatierra petrel (Pacific Ocean basin species)
*
* ''Pterodroma longirostris'', Stejneger's petrel (Pacific Ocean basin species)
*
* ''Pterodroma nigripennis'', black-winged petrel (Pacific Ocean basin species with eccentric breeding locality in the Indian Ocean-Round Island, Mauritius)
*
* ''Pterodroma axillaris'', Chatham petrel (Pacific Ocean basin species)
*
* ''Pterodroma hypoleuca'', Bonin petrel (Pacific Ocean basin species)
*
* ''Pterodroma inexpectata'', mottled petrel (Pacific Ocean basin species)
*
* ''Pterodroma leucoptera'', Gould's petrel (Pacific Ocean basin species)
*
* ''Pterodroma brevipes'', collared petrel (Pacific Ocean basin species)
*
*
*''Pterodroma brevipes magnificens'', may be a full species magnificent petrel ''Pterodroma magnificens''
A Pleistocene fossil from Aldabra in the Indian Ocean was described as ''Pterodroma kurodai''. Biogeographically, it could belong to any genus.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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