White-necked petrel: Difference between revisions
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| synonyms = *''Oestrelata cervicalis'' |
| synonyms = *''Oestrelata cervicalis'' |
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The '''white-necked petrel''' ('''''Pterodroma cervicalis'''''), also known as the '''white-naped petrel''', is a species of [[seabird]] in the family [[Procellariidae]]. During the non-breeding season it occurs throughout a large part of the [[Pacific]], but it is only known to breed on [[Macauley Island]] in [[New Zealand| |
The '''white-necked petrel''' ('''''Pterodroma cervicalis'''''), also known as the '''white-naped petrel''', is a species of [[seabird]] in the family [[Procellariidae]]. During the non-breeding season it occurs throughout a large part of the [[Pacific]], but it is only known to breed on [[Macauley Island]]<ref name=":0">{{CiteQ|Q106839633}}</ref> in [[New Zealand|New Zealand's]] [[Kermadec Islands]] and the [[Commonwealth of Australia|Australian]] territory of [[Norfolk Island]] and [[Phillip Island (Norfolk Island)|Phillip Island]]. It formerly bred on [[Raoul Island]], but has now been [[Local extinction|extirpated]] from this locality due to predation by rats and cats.<ref name=":0" /> Reports of breeding on [[Merelava]], [[Vanuatu]], are more likely to be the very similar [[Vanuatu petrel]], ''P. occulta'', which some consider to be a [[subspecies]] of the white-necked petrel. The [[IUCN]] rating as [[Vulnerable species|vulnerable]] is for the "combined" species. |
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==Description== |
==Description== |
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This species resembles the Vanuatu petrel, ''P. occulta'', but is slightly larger at {{convert|43|cm|in}} in length, {{convert|95|-|105|cm|in}} in wing span and {{convert|380|-|545|g|oz}} in weight. It has a black cap, white rear neck, dark grey back, wings and tail, and a darker rump. The underparts are white with dark bases on the primary feathers. The upperparts of worn birds become darker. |
This species resembles the Vanuatu petrel, ''P. occulta'', but is slightly larger at {{convert|43|cm|in|abbr=on}} in length, {{convert|95|-|105|cm|in|abbr=on}} in wing span and {{convert|380|-|545|g|oz|abbr=on}} in weight. It has a black cap, white rear neck, dark grey back, wings and tail, and a darker rump. The underparts are white with dark bases on the primary feathers. The upperparts of worn birds become darker. |
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[[File:Pterodroma cervicalis 2 - SE Tasmania.jpg|thumb]]It is very difficult to separate the white-necked petrel from the Vanuatu petrel at sea. |
[[File:Pterodroma cervicalis 2 - SE Tasmania.jpg|thumb]]It is very difficult to separate the white-necked petrel from the Vanuatu petrel at sea. |
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Latest revision as of 22:53, 17 June 2024
| White-necked petrel | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Procellariiformes |
| Family: | Procellariidae |
| Genus: | Pterodroma |
| Species: | P. cervicalis
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| Binomial name | |
| Pterodroma cervicalis (Salvin, 1891)
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| Synonyms | |
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The white-necked petrel (Pterodroma cervicalis), also known as the white-naped petrel, is a species of seabird in the family Procellariidae. During the non-breeding season it occurs throughout a large part of the Pacific, but it is only known to breed on Macauley Island[2] in New Zealand's Kermadec Islands and the Australian territory of Norfolk Island and Phillip Island. It formerly bred on Raoul Island, but has now been extirpated from this locality due to predation by rats and cats.[2] Reports of breeding on Merelava, Vanuatu, are more likely to be the very similar Vanuatu petrel, P. occulta, which some consider to be a subspecies of the white-necked petrel. The IUCN rating as vulnerable is for the "combined" species.
Description
[edit].jpg)
This species resembles the Vanuatu petrel, P. occulta, but is slightly larger at 43 cm (17 in) in length, 95–105 cm (37–41 in) in wing span and 380–545 g (13.4–19.2 oz) in weight. It has a black cap, white rear neck, dark grey back, wings and tail, and a darker rump. The underparts are white with dark bases on the primary feathers. The upperparts of worn birds become darker.
It is very difficult to separate the white-necked petrel from the Vanuatu petrel at sea.
Ecology
[edit]This is a solitary pelagic gadfly petrel of the open seas of the south-west Pacific. It has an effortless graceful flight with few wing beats, and does not follow ships. It feeds on the wing, picking fish and squid from near the surface.
Its natural habitats are subtropical or tropical seasonally wet or flooded lowland grassland (for breeding) and open seas (for foraging). It is threatened by habitat loss on its breeding grounds.
References
[edit]- ^ BirdLife International (2018). "Pterodroma cervicalis". IUCN Red List of Threatened Species. 2018: e.T22697957A132614556. doi:10.2305/IUCN.UK.2018-2.RLTS.T22697957A132614556.en. Retrieved 12 November 2021.
- ^ a b Colin Miskelly; Dafna Gilad; Graeme Arthur Taylor; Alan Tennyson; Susan M. Waugh (2019). "A review of the distribution and size of gadfly petrel (Pterodroma spp.) colonies throughout New Zealand". Tuhinga: Records of the Museum of New Zealand Te Papa Tongarewa. 30. Te Papa: 99–177. ISSN 1173-4337. Wikidata Q106839633.
- Onley and Scofield, Albatrosses, Petrels and Shearwaters of the World (Helm 2007) ISBN 978-0-7136-4332-9