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Gadfly Petrel
The gadfly petrels or ''Pterodroma'' are a genus of about 35 species of petrels, part of the seabird order Procellariiformes. The gadfly petrels are named for their speedy weaving flight, as if evading gadflies (horseflies). The flight action is also reflected in the name ''Pterodroma'', from Ancient Greek ''pteron'', "wing" and ''dromos'', "runner". The short, sturdy bills of these medium to large petrels are adapted for soft prey that they pick from the ocean surface. They have twisted intestines for digesting marine animals that 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 the genus as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black-capped Petrel
The black-capped petrel (''Pterodroma hasitata''), also known as the diablotín, is a small seabird native to the West Indies in the genus '' Pterodroma''. It is a long-winged petrel with a grey-brown back and wings, with a white nape and rump. Underparts are mainly white apart from a black cap (that in some individuals extends to cover the eye) and some dark underwing markings. It picks food items such as squid from the ocean surface. Description The black-capped petrel is large compared to other gadfly petrels, with a length of about 16 inches (40.5 cm) and 37 inches (94 cm) wingspan. The most similar species within its range is the Bermuda petrel, which is smaller and has a narrower white rump patch and an extensive gray cowl. The great shearwater is also superficially similar. The critically endangered or possibly extinct Jamaica petrel (''P. caribbaea'') was a related dark form. The local Spanish name, ''Diablotín'', means "little devil" because of its night-time habits ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great-winged Petrel
The great-winged petrel (''Pterodroma macroptera'') is a petrel. Taxonomy This species was formerly treated as containing two subspecies - ''P. m. macroptera'' and ''P. m. gouldi'', the latter of which is endemic to New Zealand. As of 2014, the latter is recognized as a species in its own right, the grey-faced petrel (''Pterodroma gouldi''). In 2016 further research was published supporting the full species status of the grey-faced petrel. Description This is a large seabird, with a body length of 42–45 cm. The bird is completely dark brown except for a variable patch of white near the base of the bill, which is black. It is separated from sooty shearwater and short-tailed shearwater by the all-dark underwing, the thick, stubby bill, and different jizz. The similar flesh-footed shearwater has a light, pinkish bill. Petrels in the genus ''Procellaria'' are larger and have a less bounding flight. Distribution The great-winged petrel breeds in the Southern Hemisphere b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jamaican Petrel
The Jamaican petrel (''Pterodroma caribbaea'') is a small possibly extinct seabird in the gadfly petrel genus, '' Pterodroma''. It is related to the black-capped petrel (''P. hasitata''). Conservation This species was last collected in 1879, and was searched for without success between 1996 and 2000. However, it cannot yet be classified as extinct because nocturnal petrels are notoriously difficult to record, and it may still occur on Dominica and Guadeloupe. If it is extinct, the most likely cause is due to predation by introduced mongooses and rats Rats are various medium-sized, long-tailed rodents. Species of rats are found throughout the order Rodentia, but stereotypical rats are found in the genus ''Rattus''. Other rat genera include ''Neotoma'' ( pack rats), ''Bandicota'' (bandicoot .... Parasites Several species of lice are known to have parasitized the Jamaica and black-capped petrels. If the former is extinct, one of these lice, the phtilopterid '' Saemund ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bermuda Petrel
The Bermuda petrel (''Pterodroma cahow'') is a gadfly petrel. Commonly known in Bermuda as the cahow, a name derived from its eerie cries, this nocturnal ground-nesting seabird is the national bird of Bermuda and can be found pictured on Bermudian currency. It is the second rarest seabird on the planet and a symbol of hope for nature conservation. They are known for their medium-sized body and long wings. The Bermuda petrel has a greyish-black crown and collar, dark grey upper-wings and tail, white upper-tail coverts and white under-wings edged with black, and the underparts are completely white. For 300 years, it was thought to be extinct. The dramatic rediscovery in 1951 of eighteen nesting pairs made this a "Lazarus species", that is, a species found to be alive after having been considered extinct. This has inspired a book and two documentary films. A national programme to preserve the bird and restore the species has helped increase its numbers, but scientists are still wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desertas Petrel
The Desertas petrel (''Pterodroma deserta'') is a small seabird in the gadfly petrel genus which breeds on Bugio Island in the Desertas off Madeira. The gadfly petrels in the genus ''Pterodroma'' are seabirds of temperate and tropical oceans. Many are little-known, and their often similar appearance have caused the taxonomy of the group to be rather fluid. Although the systematics on this species has not yet been definitively established, provisionally some authorities have split the Desertas petrel, separating the Desertas breeding birds from those in the Cape Verde archipelago, while others consider it a subspecies of the Fea's petrel. The species is named after its breeding grounds, which are pronounced "Dez-ERT-ass". Description As all three of the species in the ''Pterodroma feae/madeira ) , anthem = ( en, "Anthem of the Autonomous Region of Madeira") , song_type = Regional anthem , image_map=EU-Portugal_with_Madeira_circled.svg , map_alt=Location of Madeira , map_ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fea's Petrel
The Fea's petrel (''Pterodroma feae'') is a small seabird in the gadfly petrel genus, '' Pterodroma''. It was previously considered to be a subspecies of the soft-plumaged petrel (''P. mollis''), but they are actually not closely related at all. However, ''P. feae'' is very closely related to Zino's petrel and Desertas petrel, two other species recently split from ''P. mollis''. The gadfly petrels are named for their speedy weaving flight, as if evading horseflies. The flight action is also reflected in the genus name ''Pterodroma'', from Ancient Greek ''pteron'', "wing" and ''dromos'', " runner". This species is named after the Italian zoologist Leonardo Fea (1852-1903). Taxonomy and systematics The first known recording of the "soft-plumaged petrel" appears to have been in October 1768 off the coast of West Africa during Captain Cook's first voyage. While no description was published at the time, a drawing of the specimen produced by Sydney Parkinson can be recognised as th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zino's Petrel
Zino's petrel (''Pterodroma madeira'') or the freira, is a species of small seabird in the gadfly petrel genus, endemic to the island of Madeira. This long-winged petrel has a grey back and wings, with a dark "W" marking across the wings, and a grey upper tail. The undersides of the wings are blackish apart from a triangle of white at the front edge near the body, and the belly is white with grey flanks. It is very similar in appearance to the slightly larger Fea's petrel, and separating these two Macaronesian species at sea is very challenging. It was formerly considered to be a subspecies of the soft-plumaged petrel, ''P. mollis'', but they are not closely related, and Zino's was raised to the status of a species because of differences in morphology, calls, breeding behaviour and mitochondrial DNA. It is Europe's most endangered seabird, with breeding areas restricted to a few ledges high in the central mountains of Madeira. Zino's petrel nests in burrows which are visited only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soft-plumaged Petrel
The soft-plumaged petrel (''Pterodroma mollis'') is a species of seabird in the family Procellariidae. Distribution It breeds on islands in the Southern Hemisphere, nesting on Tristan da Cunha, Gough Island, the Prince Edward Islands, Crozet Islands, Macquarie Island, and on the Antipodes Islands of New Zealand. Small numbers breed in the Maatsuyker Island Group of southern Tasmania. It disperses outside the breeding season, reaching eastern South America north to Brazil, southern Africa and Australia. It has occurred as a vagrant in Israel, Norway and Jordan. Taxonomy Fea's petrel (''P. feae''), Desertas petrel (''P. desertae'') and Zino's petrel Zino's petrel (''Pterodroma madeira'') or the freira, is a species of small seabird in the gadfly petrel genus, endemic to the island of Madeira. This long-winged petrel has a grey back and wings, with a dark "W" marking across the wings, and a ... (''P. madeira'') of the North Atlantic were formerly treated as subspecies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Murphy's Petrel
Murphy's petrel (''Pterodroma ultima'') is a species of seabird and a member of the gadfly petrels. The bird is 15 inches in length, with a 35-inch wingspan and weigh about 13 ounces. It was described by Robert Cushman Murphy in 1949, which is the source of the species' common name. Distribution Very little is known about this species of petrel. It was not until the 1980s that it was determined that these petrels might be regular visitors far offshore of North America. It occurs in the South Pacific, nesting on rocky islets and cliffs off tropical oceanic islands in the Austral, Tuamotu, and Pitcairn groups. The bird has been recorded off the coast of the Hawaiian Islands and well off the Pacific Coast of the United States and in the southern Gulf of Alaska. Most reports of Murphy's petrels are over 40 miles offshore and the species reportedly has one of the greatest foraging ranges of any breeding seabird References * "National Geographic" ''Field Guide to the Birds of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magenta Petrel
The magenta petrel (''Pterodroma magentae''), or Chatham Island tāiko, is a small seabird in the gadfly petrel genus, ''Pterodroma''. Found exclusively on Chatham Island, New Zealand it is one of the rarest birds in the world, believed to be extinct for over 100 years before its rediscovery in the 1970s. Description This medium-sized petrel has a brownish-grey head, neck, and upper breast, with white underparts. The undersides of the wings are brown. It has a black bill and pink legs. Adults weigh 400–580 g. The bird nests in 1–3 m long burrows under dense forest. They form long-term monogamous pair bonds, raising one egg at a time, and both partners incubate the egg and feed the chick. The breeding season is between September and May, during which time the birds forage over the open ocean. History Fossil records and historic records show that tāiko used to be the most abundant burrowing seabird on Chatham Island, though has not been found to have lived on ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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