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Phalcoboenus Napieri
''Phalcoboenus'' is a small genus of caracara in the family Falconidae. They are found in barren, open habitats in the Andes, Patagonia and the Falkland Islands. The four species are almost entirely allopatric. The adults are distinctive, with bare yellow, orange or red facial skin and cere, and a black plumage with variable amounts of white. Juveniles are overall brown with pale pinkish-grey facial skin and cere. They are highly opportunistic and typically seen walking on the ground, where they will feed on carrion and virtually any small animal they can catch. Species There are four extant and one extinct species. The extant species are: The extinct species is ''Phalcoboenus napieri'' which is known from subfossil remains unearthed in peat deposits from the Falkland Islands, described in 2016 and named for Roddy Napier, the owner of West Point Island West Point Island (originally known as Albatross Island; es, Isla Remolinos) is one of the Falkland Islands, lying in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Caracara
The mountain caracara (''Phalcoboenus megalopterus''), (Spanish: corequenque) is a species of bird of prey in the family Falconidae. It is found in Puna grassland, puna and páramo in the Andes, ranging from northern Ecuador, through Peru and Bolivia, to northern Argentina and Chile. It is generally uncommon to fairly common. It resembles the closely related Carunculated Caracara and White-throated Caracara, but unlike those species, its chest is uniform black. Juvenile (organism), Juveniles are far less distinctive than the red-faced piebald, pied adults, being overall brown with dull pinkish-grey facial skin. Description A medium-sized caracara with a faintly blue beak tip turning to bright orange, strongly contrasted by the jet-black feathers of its head, back and chest. Its rump, belly and upper tail and undertail coverts are pure white, changing sharply from black to white between the belly and chest. Its black wings have small white shoulder patches and it has white spots on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allopatric
Allopatric speciation () – also referred to as geographic speciation, vicariant speciation, or its earlier name the dumbbell model – is a mode of speciation that occurs when biological populations become geographically isolated from each other to an extent that prevents or interferes with gene flow. Various geographic changes can arise such as the movement of continents, and the formation of mountains, islands, bodies of water, or glaciers. Human activity such as agriculture or developments can also change the distribution of species populations. These factors can substantially alter a region's geography, resulting in the separation of a species population into isolated subpopulations. The vicariant populations then undergo genetic changes as they become subjected to different selective pressures, experience genetic drift, and accumulate different mutations in the separated populations' gene pools. The barriers prevent the exchange of genetic information between t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Point Island
West Point Island (originally known as Albatross Island; es, Isla Remolinos) is one of the Falkland Islands, lying in the north-west corner of the archipelago. It has an area of and boasts some of the most spectacular coastal scenery in the Falklands. The island is owned by Roddy & Lily Napier and run as a sheep farm and tourist attraction. Description West Point Island lies off the north-west point of West Falkland. It is long with a maximum width of . Its dramatic west-facing cliffs are the highest in the Falklands, with the highest point at Cliff Mountain rising to . West Point Island Settlement, with its airstrip, lies on Westpoint Cove in the north-east. It is separated from West Falkland by a narrow channel called the Wooly Gut, which is a local reference to katabatic winds that often occur there. It lies south-east of the Jason Islands, the nearest being South Jason Island. History As with many locations around the Falkland Islands, in the early 19th century West Poi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Striated Caracara On Saunders Island (5551648335)
Striations means a series of ridges, furrows or linear marks, and is used in several ways: * Glacial striation * Striation (fatigue), in material * Striation (geology), a ''striation'' as a result of a geological fault * Striation Valley, in Antarctica * In hyperbolic geometry, a ''striation'' is a reflection across two parallel mirrors. * In anatomy, striated muscle * Striations can be found in certain glasses. These have been caused by turbulent flow during teeming (pouring) of the glass. * Striations can be observed in clouds In meteorology, a cloud is an aerosol consisting of a visible mass of miniature liquid droplets, frozen crystals, or other particles suspended in the atmosphere of a planetary body or similar space. Water or various other chemicals may com .... See Barber's pole. * Ballistic fingerprinting {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White-throated Caracara (Phalcoboenus Albogularis) (15772940998)
The white-throated caracara (''Phalcoboenus albogularis'') is a species of bird of prey in the family Falconidae. It is found in grasslands and other barren habitats in the Andes of southern Chile and Argentina. It is generally uncommon to fairly common. A highly opportunistic bird commonly seen walking on the ground, it will feed on both carrion and virtually any small animal it can catch. It resembles the closely related mountain caracara, but unlike that species its underparts (including chest and throat) are entirely white. Juveniles are far less distinctive than the yellow-faced pied adults, being overall brown with dull pinkish-grey facial skin. Taxonomy and systematics The white-throated caracara is a bird in the order Falconiformes, which includes 11 genera and 65 species and represents a broad distribution of raptorial birds with many diverse behaviours. Its family Falconidae is divided into three subfamilies, Herpetotherinae, Polyborinae, and Falconinae. The white-th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phalcoboenus Megalopterus In Cordillera Real, Bolivia 03
''Phalcoboenus'' is a small genus of caracara in the family Falconidae. They are found in barren, open habitats in the Andes, Patagonia and the Falkland Islands. The four species are almost entirely allopatric. The adults are distinctive, with bare yellow, orange or red facial skin and cere, and a black plumage with variable amounts of white. Juveniles are overall brown with pale pinkish-grey facial skin and cere. They are highly opportunistic and typically seen walking on the ground, where they will feed on carrion and virtually any small animal they can catch. Species There are four extant and one extinct species. The extant species are: The extinct species is ''Phalcoboenus napieri'' which is known from subfossil remains unearthed in peat deposits from the Falkland Islands, described in 2016 and named for Roddy Napier, the owner of West Point Island West Point Island (originally known as Albatross Island; es, Isla Remolinos) is one of the Falkland Islands, lying in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carrion
Carrion () is the decaying flesh of dead animals, including human flesh. Overview Carrion is an important food source for large carnivores and omnivores in most ecosystems. Examples of carrion-eaters (or scavengers) include crows, vultures, condors, hawks, eagles, hyenas, Virginia opossum, Tasmanian devils, coyotes and Komodo dragons. Many invertebrates, such as the carrion and burying beetles, as well as maggots of calliphorid flies (such as one of the most important species in '' Calliphora vomitoria'') and flesh-flies, also eat carrion, playing an important role in recycling nitrogen and carbon in animal remains. Carrion begins to decay at the moment of the animal's death, and it will increasingly attract insects and breed bacteria. Not long after the animal has died, its body will begin to exude a foul odor caused by the presence of bacteria and the emission of cadaverine and putrescine. Some plants and fungi smell like decomposing carrion and attract insects that a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juvenile (organism)
A juvenile is an individual organism that has not yet reached its adult form, sexual maturity or size. Juveniles can look very different from the adult form, particularly in colour, and may not fill the same niche as the adult form. In many organisms the juvenile has a different name from the adult (see List of animal names). Some organisms reach sexual maturity in a short metamorphosis, such as eclosion in many insects. For others, the transition from juvenile to fully mature is a more prolonged process—puberty in humans and other species, for example. In such cases, juveniles during this transformation are sometimes called subadults. Many invertebrates, on reaching the adult stage, are fully mature and their development and growth stops. Their juveniles are larvae or nymphs. In vertebrates and some invertebrates (e.g. spiders), larval forms (e.g. tadpoles) are usually considered a development stage of their own, and "juvenile" refers to a post-larval stage that is not full ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plumage
Plumage ( "feather") is a layer of feathers that covers a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage differ between species and subspecies and may vary with age classes. Within species, there can be different colour morphs. The placement of feathers on a bird is not haphazard, but rather emerge in organized, overlapping rows and groups, and these are known by standardized names. Most birds moult twice a year, resulting in a breeding or ''nuptial plumage'' and a ''basic plumage''. Many ducks and some other species such as the red junglefowl have males wearing a bright nuptial plumage while breeding and a drab ''eclipse plumage'' for some months afterward. The painted bunting's juveniles have two inserted moults in their first autumn, each yielding plumage like an adult female. The first starts a few days after fledging replacing the ''juvenile plumage'' with an ''auxiliary formative plumage''; the second a month or so l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cere
The beak, bill, or rostrum is an external anatomical structure found mostly in birds, but also in turtles, non-avian dinosaurs and a few mammals. A beak is used for eating, preening, manipulating objects, killing prey, fighting, probing for food, Courtship#Courtship in the animal kingdom, courtship, and feeding young. The terms ''beak'' and ''Rostrum (anatomy), rostrum'' are also used to refer to a similar mouth part in some ornithischians, pterosaurs, cetaceans, dicynodonts, anuran tadpoles, monotremes (i.e. echidnas and platypuses, which have a beak-like structure), Sirenidae, sirens, Tetraodontidae, pufferfish, billfishes and Cephalopod beak, cephalopods. Although beaks vary significantly in size, shape, color and texture, they share a similar underlying structure. Two bony projections – the upper and lower mandibles – are covered with a thin keratinized layer of epidermis known as the rhamphotheca. In most species, two holes called ''nares'' lead to the respiratory system. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falkland Islands
The Falkland Islands (; es, Islas Malvinas, link=no ) is an archipelago in the South Atlantic Ocean on the Patagonian Shelf. The principal islands are about east of South America's southern Patagonian coast and about from Cape Dubouzet at the northern tip of the Antarctic Peninsula, at a latitude of about 52°S. The archipelago, with an area of , comprises East Falkland, West Falkland, and 776 smaller islands. As a British overseas territory, the Falklands have internal self-governance, but the United Kingdom takes responsibility for their defence and foreign affairs. The capital and largest settlement is Stanley on East Falkland. Controversy exists over the Falklands' discovery and subsequent colonisation by Europeans. At various times, the islands have had French, British, Spanish, and Argentine settlements. Britain reasserted its rule in 1833, but Argentina maintains its claim to the islands. In April 1982, Argentine military forces invaded the islands. British a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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