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White-throated Spadebill
The white-throated spadebill (''Platyrinchus mystaceus'') is a tiny passerine bird in the family Tyrannidae, the tyrant flycatchers. It is found in Costa Rica, Panama, on Trinidad and Tobago, and in every mainland South American country except Chile, French Guiana, Uruguay, and Suriname.Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, G. Del-Rio, A. Jaramillo, D. F. Lane, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 30 January 2025. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved 31 January 2025 Taxonomy and systematics The white-throated spadebill's taxonomy has not been settled. The International Ornithological Committee (IOC), the Clements taxonomy, and the American Ornithological Society (AOS) assign it these 14 subspecies:Clements, J. F., P.C. Rasmussen, T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, A. Spencer, S. M. Billerman, B. L. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis Pierre Vieillot
Louis Pierre Vieillot (10 May 1748, Yvetot – 24 August 1830, Sotteville-lès-Rouen) was a French ornithologist. Vieillot is the author of the first scientific descriptions and Linnaean names of a number of birds, including species he collected himself in the West Indies and North America and South American species discovered but not formally named by Félix de Azara and his translator Sonnini de Manoncourt. He was among the first ornithologists to study changes in plumage and one of the first to study live birds. At least 77 of the genera erected by Vieillot are still in use. Biography Vieillot was born in Yvetot. He represented his family's business interests in Saint-Domingue (Haiti) on Hispaniola, but fled to the United States during the Haitian rebellions that followed the French Revolution. On Buffon's advice, he collected material for the , the first two volumes of which were published in France beginning in 1807. Vieillot returned to France for the last time in 1798, whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serranía Del Perijá
The Serranía del Perijá, Cordillera de Perijá or Sierra de Perijá is a mountain range, an extension of the eastern Andean branch ( Cordillera Oriental), in northern South America, between Colombia and Venezuela, ending further north in the Guajira Desert, a total distance of about . It separates the Maracaibo Basin from the Cesar-Ranchería Basin. Some of the area has been considered as a Flora and Fauna Sanctuary. Geography Starting at the southernmost point, near Ocaña, Colombia, this mountain range forms the boundary between the Colombian departments of Norte de Santander and Cesar, and then as the range progresses north, it forms the international boundary between Venezuela ( Zulia State) and Colombia (Cesar Department). Included in the range are the Sierra Motilones, Sierra Valledupar, and Sierra Oca. The highest point is Cerro de Las Tetas at , followed by Cerro Irapa at , Serranía de Macuira at , and Cerro Aceite at . Montane moist forests cover the mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cordillera Oriental (Colombia)
The Cordillera Oriental () is the widest of the three branches of the Colombian Andes. The range extends from south to north, dividing from the Colombian Massif in Huila Department to Norte de Santander Department where it splits into the Serranía del Perijá and the Cordillera de Mérida in Venezuelan Andes. The highest peak is Ritacuba Blanco at in the Sierra Nevada del Cocuy. Geography The western part of the Cordillera Oriental belongs to the Magdalena River basin, while the eastern part includes the river basins of the Amazon River, Orinoco River, and Catatumbo River. Within it, the Altiplano Cundiboyacense and the Sierra Nevada del Cocuy (with the only snowy peaks in this mountain range) stand out. The mountain range contains the most páramos in the world. The Cordillera Oriental montane forests ecoregion An ecoregion (ecological region) is an ecological and geographic area that exists on multiple different levels, defined by type, quality, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Táchira
Táchira State (, ) is one of the 23 States of Venezuela, states of Venezuela. The state capital is San Cristóbal, Táchira, San Cristóbal. Táchira State covers a total surface area of and as of the 2011 census, had a population of 1,168,908. At the end of the 19th century, Táchira State was where oil was discovered in Venezuela. Currently, its main economic revenues come from the production of coffee and pineapple. The cattle and agricultural activities play an important role in Táchira's economy. There is also a strong Industry (manufacturing), industrial sector which focuses on the processing of potato, sugar, milk, and cheese and the production of textiles. Táchira State is one of the three Venezuelan Andes, Venezuelan Andean states (the other two are Mérida (state), Mérida and Trujillo (state), Trujillo). This state borders Zulia State to the north, Barinas (state), Barinas and Mérida States to the east, Apure (state), Apure and Barinas States to the south, and C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santa Marta
Santa Marta (), officially the Distrito Turístico, Cultural e Histórico de Santa Marta (), is a port List of cities in Colombia, city on the coast of the Caribbean Sea in northern Colombia. It is the capital of Magdalena Department and the fourth-largest urban city of the Caribbean Region of Colombia, after Barranquilla, Cartagena, Colombia, Cartagena, and Soledad, Atlantico, Soledad. Founded on July 29, 1525, by the Spanish conqueror Rodrigo de Bastidas, it was one of the first Spanish settlements in Colombia, its oldest surviving city, and second-oldest in South America. This city is situated on a bay by the same name and as such, it is a prime tourist destination in the Caribbean region. History Pre-Columbian times Before the arrival of Europeans, the South American continent was inhabited by a number of Indigenous peoples of the Americas, indigenous groups. Due to a combination of tropical weather, significant rainfall, and the destruction and misrepresentation of man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boyacá Department
Boyacá () is one of the thirty-two departments of Colombia, and the remnant of Boyacá State, one of the original nine states of the "United States of Colombia". Boyacá is centrally located within Colombia, almost entirely within the mountains of the Cordillera Oriental, Colombia, Eastern Cordillera to the border with Venezuela, although the western end of the department extends to the Magdalena River at the town of Puerto Boyacá, Boyacá, Puerto Boyacá. Boyacá borders to the north with the Department of Santander Department, Santander, to the northeast with the Bolivarian Republic of Venezuela and Norte de Santander, to the east with the departments of Arauca Department, Arauca and Casanare Department, Casanare. To the south, Boyacá borders the department of Cundinamarca Department, Cundinamarca and to the west with the Department of Antioquia Department, Antioquia covering a total area of . The capital of Boyacá is the city of Tunja. Boyacá is known as "The Land of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wing Bar
The following is a glossary of common English language terms used in the description of birds—warm-blooded vertebrates of the class Aves and the only living dinosaurs. Birds, who have and the ability to (except for the approximately 60 extant species of flightless birds), are toothless, have , lay hard-shelled eggs, and have a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Among other details such as size, proportions and shape, terms defining bird features developed and are used to describe features unique to the class—especially evolutionary adaptations that developed to aid flight. There are, for example, numerous terms describing the complex structural makeup of feathers (e.g., , and ); types of feathers (e.g., , and feathers); and their growth and loss (e.g., , and ). There are thousands of terms that are unique to the study of birds. This glossary makes no attempt to cover them all, concentrating on terms that might be fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mandible
In jawed vertebrates, the mandible (from the Latin ''mandibula'', 'for chewing'), lower jaw, or jawbone is a bone that makes up the lowerand typically more mobilecomponent of the mouth (the upper jaw being known as the maxilla). The jawbone is the skull's only movable, posable bone, sharing Temporomandibular joint, joints with the cranium's temporal bones. The mandible hosts the lower Human tooth, teeth (their depth delineated by the alveolar process). Many muscles attach to the bone, which also hosts nerves (some connecting to the teeth) and blood vessels. Amongst other functions, the jawbone is essential for chewing food. Owing to the Neolithic Revolution, Neolithic advent of agriculture (), human jaws evolved to be Human jaw shrinkage, smaller. Although it is the strongest bone of the facial skeleton, the mandible tends to deform in old age; it is also subject to Mandibular fracture, fracturing. Surgery allows for the removal of jawbone fragments (or its entirety) as well a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maxilla
In vertebrates, the maxilla (: maxillae ) is the upper fixed (not fixed in Neopterygii) bone of the jaw formed from the fusion of two maxillary bones. In humans, the upper jaw includes the hard palate in the front of the mouth. The two maxillary bones are fused at the intermaxillary suture, forming the anterior nasal spine. This is similar to the mandible (lower jaw), which is also a fusion of two mandibular bones at the mandibular symphysis. The mandible is the movable part of the jaw. Anatomy Structure The maxilla is a paired bone - the two maxillae unite with each other at the intermaxillary suture. The maxilla consists of: * The body of the maxilla: pyramid-shaped; has an orbital, a nasal, an infratemporal, and a facial surface; contains the maxillary sinus. * Four processes: ** the zygomatic process ** the frontal process ** the alveolar process ** the palatine process It has three surfaces: * the anterior, posterior, medial Features of the maxilla include: * t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coverts
A covert feather or tectrix on a bird is one of a set of feathers, called coverts (or ''tectrices''), which cover other feathers. The coverts help to smooth airflow over the wings and tail. Ear coverts The ear coverts are small feathers behind the bird's eye which cover the ear opening (the ear of a bird has no external features). Tail coverts The uppertail and undertail coverts cover the base of the tail feathers above and below. Sometimes these coverts are more specialised. The "tail" of a peacock is made of elongated uppertail coverts. Wing coverts The upperwing coverts fall into two groups: those on the inner wing, which overlay the secondary flight feathers, known as the secondary coverts, and those on the outer wing, which overlay the primary flight feathers, the primary coverts. Within each group, the feathers form a number of rows. The feathers of the outermost, largest, row are termed greater (primary-/secondary-) coverts; those in the next row are the median (prima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eye-ring
The eye-ring of a bird is a ring of tiny feathers that surrounds the orbital ring, a ring of bare skin immediately surrounding a bird's eye. The eye-ring is often decorative, and its colour may contrast with adjoining plumage. The ring of feathers is sometimes incomplete, forming an eye arc. In the absence of a conspicuous eye-ring, the orbital ring of a bird is often referred to as the eye-ring. The bare orbital ring may be hardened or fleshy, or may form an eye-wattle (anatomy), wattle. These are useful field marks in many bird species, and the eye-ringed flatbill, eye-ringed tody-tyrant and eye-ringed thistletail are examples of species named for either of these. __NOTOC__ Function Eye-rings are believed to convey various types of signals between individual birds. Some eye-rings appear only at sexual maturity, while others suggest the individual's age or health status. Individual birds may be included or excluded from reproductive capability due to signals conveyed by the eye- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
