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Bogotá Sunangel
The Bogotá sunangel (''Heliangelus zusii'') is a species of hummingbird that is only known from one specimen. It is a dark bluish-black hummingbird with a straight bill. It is distinguishable from other ''Heliangelus'' species by its forked, dark purple tail and bright green frontlet and gorget. This bird has only been found in Colombia and is assumed to live in cloud forest between 1200 and 3400 meters. Most of its potential habitat is degraded, though it is feasible that a population may still exist. This hummingbird is known from a single skin purchased in Bogotá in 1909. Nothing more is known of the bird, and though the skin is most commonly thought to come from either the Eastern or Central Andes of Colombia, other specimens from Bogotá have come from as far away as Ecuador. Since the bird has not been seen alive, it is assumed to have a Relict (biology), relict population if it still survives. Some have suggested that the bird is just a hybrid, though the skin is very dis ...
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Hummingbird
Hummingbirds are birds native to the Americas and comprise the Family (biology), biological family Trochilidae. With approximately 366 species and 113 genus, genera, they occur from Alaska to Tierra del Fuego, but most species are found in Central America, Central and South America. As of 2024, 21 hummingbird species are listed as Endangered species, endangered or critically endangered, with numerous species declining in population. Hummingbirds have varied specialized characteristics to enable rapid, maneuverable flight: exceptional metabolism, metabolic capacity, adaptations to high altitude, sensitive visual and communication abilities, and long-distance migration in some species. Among all birds, male hummingbirds have the widest diversity of plumage color, particularly in blues, greens, and purples. Hummingbirds are the smallest mature birds, measuring in length. The smallest is the bee hummingbird, which weighs less than , and the largest is the giant hummingbird, weig ...
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Taxonomy Articles Created By Polbot
280px, Generalized scheme of taxonomy Taxonomy is a practice and science concerned with classification or categorization. Typically, there are two parts to it: the development of an underlying scheme of classes (a taxonomy) and the allocation of things to the classes (classification). Originally, taxonomy referred only to the classification of organisms on the basis of shared characteristics. Today it also has a more general sense. It may refer to the classification of things or concepts, as well as to the principles underlying such work. Thus a taxonomy can be used to organize species, documents, videos or anything else. A taxonomy organizes taxonomic units known as "taxa" (singular "taxon"). Many are hierarchies. One function of a taxonomy is to help users more easily find what they are searching for. This may be effected in ways that include a library classification system and a search engine taxonomy. Etymology The word was coined in 1813 by the Swiss botanist A ...
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Birds Described In 1993
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the common ostrich. There are over 11,000 living species and they are split into 44 orders. More than half are passerine or "perching" birds. Birds have wings whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further ...
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Bird Hybrids
A bird hybrid is a bird that has two different species as parents. The resulting bird can present with any combination of characteristics from the parent species, from totally identical to completely different. Usually, the bird hybrid shows intermediate characteristics between the two species. A "successful" hybrid is one demonstrated to produce fertile offspring. According to the most recent estimates, about 16% of all wild bird species have been known to hybridize with one another; this number increases to 22% when captive hybrids are taken into account. Several bird species hybridize with multiple other species. For example, the mallard (''Anas platyrhynchos'') is known to interbreed with at least 40 different species. The ecological and evolutionary consequences of multispecies hybridization remain to be determined. In the wild, some of the most frequently reported hybrids are waterfowl, gulls, hummingbirds, and birds-of-paradise. Mallards, whether of wild or domestic o ...
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Controversial Hummingbird Taxa
Controversy (, ) is a state of prolonged public dispute or debate, usually concerning a matter of conflicting opinion or point of view. The word was coined from the Latin ''controversia'', as a composite of ''controversus'' – "turned in an opposite direction", and also means an exercise in rhetoric practiced in Rome. Legal In the theory of law, a controversy differs from a legal case; while legal cases include all suits, criminal as well as civil, a controversy is a purely civil proceeding. For example, the Case or Controversy Clause of Article Three of the United States Constitution ( Section 2, Clause 1) states that "the judicial Power shall extend ... to Controversies to which the United States shall be a Party". This clause has been deemed to impose a requirement that United States federal courts are not permitted to cases that do not pose an actual controversy—that is, an actual dispute between adverse parties which is capable of being resolved by the our ...
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American Ornithological Society
The American Ornithological Society (AOS) is an ornithological organization based in the United States. The society was formed in October 2016 by the merger of the American Ornithologists' Union (AOU) and the Cooper Ornithological Society. Its members are primarily professional ornithologists, although membership is open to anyone with an interest in birds. The society publishes the two scholarly journals, Ornithology' (formerly ''The Auk)'' and Ornithological Applications' (formerly '' The Condor)'' as well as the '' AOS Checklist of North American Birds''. The American Ornithological Society claims the authority to establish standardized English bird names throughout North and South Americas. In 2013, the American Ornithologists' Union (AOU) announced a collaboration with the Cooper Ornithological Society, streamlining operations through joint meetings, a shared publishing office, and a reorientation of their journals. By October 2016, the AOU ceased its independent status, m ...
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Long-tailed Sylph
The long-tailed sylph (''Aglaiocercus kingii'') is a species of hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae. It is found in Bolivia, Colombia, Ecuador, Peru, and Venezuela.HBW and BirdLife International (2020) ''Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world'' Version 5. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v5_Dec20.zip xls zipped 1 MBretrieved May 27, 2021 Taxonomy and systematics The taxonomy of genus ''Aglaiocercus'' and of the long-tailed sylph in particular are complicated. The genus also includes two other sylphs, the violet-tailed (''A. coelestis'') and Venezuelan (''A. berlepschi''), and the three have several times been suggested to be either one or two species. Several additional species have been proposed for inclusion but they have almost conclusively been shown to be hybrids with ''kingii'' or one of the other sylphs. Si ...
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Aglaiocercus
''Aglaiocercus'' is a genus of hummingbird in the family (biology), family Trochilidae. Description It contains the following species: References

Aglaiocercus, Bird genera Birds of the Northern Andes Taxa named by John T. Zimmer Taxonomy articles created by Polbot {{hummingbird-stub ...
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Heliangelus
The sunangels are a genus of hummingbirds, ''Heliangelus'', found in montane South America. The genus contains the following nine species: * Orange-throated sunangel (''Heliangelus mavors'') * Amethyst-throated sunangel (''Heliangelus amethysticollis'') * Longuemare's sunangel (''Heliangelus clarisse'') * Mérida sunangel (''Heliangelus spencei'') * Gorgeted sunangel (''Heliangelus strophianus'') * Tourmaline sunangel (''Heliangelus exortis'') * Flame-throated sunangel (''Heliangelus micraster'') * Purple-throated sunangel (''Heliangelus viola'') * Royal sunangel (''Heliangelus regalis'') The Bogotá sunangel was formerly placed in this genus. It is regarded as a hybrid specimen by the International Ornithologists' Union The International Ornithologists' Union (IOU) is an international organization for the promotion of ornithology Ornithology, from Ancient Greek ὄρνις (''órnis''), meaning "bird", and -logy from λόγος (''lógos''), meaning "study", ... ba ...
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