Yellow-margined Flatbill
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Yellow-margined Flatbill
The yellow-margined flatbill or Zimmer's flatbill (''Tolmomyias assimilis'') is a species of bird in the tyrant flycatcher family Tyrannidae. It is found in every mainland South American country except Argentina, Chile, Paraguay, and Uruguay. Taxonomy and systematics The yellow-margined flatbill has a complicated taxonomic history. It was originally described as ''Rhynchocyclus assimilis''. In the early twentieth century it was treated as a subspecies of the yellow-olive flatbill (now ''T. sulphurescens'') but was separated by most authors starting in about 1940. As of 2025 it has eight subspecies. However, what is now the yellow-winged flatbill (''T. flavotectus'') was previously a ninth subspecies. It was separated starting in 2016 but the process continued until 2024. Confusingly, for a time ''T. flavotectus'' was called the yellow-margined flatbill.Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, G. Del-Rio, A. Jaramillo, D. F. Lane, M. B. Robbins, F. G. St ...
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August Von Pelzeln
August von Pelzeln (10 May 1825, Prague – 2 September 1891 in Oberdöbling) was an Austrian ornithologist. He was a grandson to novelist Karoline Pichler (1769-1843). Österreichisches Biographisches Lexikon 1815–1950 (ÖBL).
Band 7. Verlag der Österreichischen Akademie der Wissenschaften, Wien 1978, , S. 401 f
He studied at the University of Vienna, later working as an assistant under helminthologist Karl Moriz Diesing (1800-1867) in the ''Imperial Natural History Museum, Hof-Naturalien-Cabinet'' (from 1851). In 1857 he acquired curatorial duties formerly held by Johann Jakob Heckel (1790-1857), and subsequently became in charge of the bird (1857) and mammal (1869) collections. He worked on the birds collected by Johann Natterer in Brazil (343 species). He was forced to retir ...
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Remiges
Flight feathers (''Pennae volatus'') are the long, stiff, asymmetrically shaped, but symmetrically paired pennaceous feathers on the wings or tail of a bird; those on the wings are called remiges (), singular remex (), while those on the tail are called rectrices ( or ), singular rectrix (). The primary function of the flight feathers is to aid in the generation of both thrust and lift, thereby enabling flight. The flight feathers of some birds perform additional functions, generally associated with territorial displays, courtship rituals or feeding methods. In some species, these feathers have developed into long showy plumes used in visual courtship displays, while in others they create a sound during display flights. Tiny serrations on the leading edge of their remiges help owls to fly silently (and therefore hunt more successfully), while the extra-stiff rectrices of woodpeckers help them to brace against tree trunks as they hammer on them. Even flightless birds still ...
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Meta Department
Meta () is a department of Colombia. It is close to the geographic center of the country, to the east of the Andean mountains. A large portion of the department, which is also crossed by the Meta River, is covered by a grassland plain known as the Llanos. Its capital is Villavicencio. The department has a monument placed in the very geographic centre of Colombia, at a place known as Alto de Menegua, a few kilometers from Puerto López. Achagua, which is similar to Piapoco, is an Indigenous language An indigenous language, or autochthonous language, is a language that is native to a region and spoken by its indigenous peoples. Indigenous languages are not necessarily national languages but they can be; for example, Aymara is both an indigen ... spoken by a minority in the department. Municipalities See also * Juan Manuel González Torres * San Martín Territory * References External links Folklore llaneroGovernment Meta
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Amapá
Amapá (; ) is one of the 26 federative units of Brazil, states of Brazil. It is in the North Region, Brazil, North Region of Brazil. It is Federative units of Brazil#List, the second-least populous state and the eighteenth-largest state by area. Located in the far northern part of the country, Amapá is bordered clockwise by French Guiana to the north for 730 km, the Atlantic Ocean to the east for 578 km, Pará to the south and west, and Suriname to the northwest for 63 km. The capital and largest city is Macapá. The state has 0.4% of the Brazilian population and is responsible for only 0.22% of the Brazilian gross domestic product, GDP. In the colonial period the region was called Portuguese Guiana and was part of Portuguese Empire, Portugal's State of Brazil. Later, the region was distinguished from the other The Guianas, Guianas. Amapá was once part of Pará, but became a separate territory in 1943, and the decision to make it a state was made in 1988. The first state legis ...
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Pará
Pará () is a Federative units of Brazil, state of Brazil, located in northern Brazil and traversed by the lower Amazon River. It borders the Brazilian states of Amapá, Maranhão, Tocantins (state), Tocantins, Mato Grosso, Amazonas (Brazilian state), Amazonas and Roraima. To the northwest are the borders of Guyana and Suriname, to the northeast of Pará is the Atlantic Ocean. The capital and largest city is Belém, which is located at the Marajó bay, near the estuary of the Amazon river. The state, which is home to 4.1% of the Brazilian population, is responsible for just 2.2% of the Brazilian GDP. Pará is the most populous state of the North Region, Brazil, North Region, with a population of over 8.6 million, being the ninth-most populous state in Brazil. It is the second-largest state of Brazil in area, at , second only to Amazonas (Brazilian state), Amazonas upriver. Its most famous icons are the Amazon River and the Amazon rainforest. Pará produces Natural rubber, rubber ( ...
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The Guianas
The Guianas, also spelled Guyanas or Guayanas, are a geographical region in north-eastern South America. Strictly, the term refers to the three Guianas: Guyana, Suriname, and French Guiana, formerly British, Dutch, and French Guiana respectively. Broadly, it refers to the South American coast from the mouth of the Orinoco to the mouth of the Amazon. Politically it is divided into: * Spanish or Venezuelan Guiana, now the Delta Amacuro State and Guayana Region of Venezuela. * Guyana, formerly British Guiana, independent since 1966. * Suriname, formerly Dutch Guiana, independent since 1975. * French Guiana, an overseas department and region of France. * Brazilian or Portuguese Guiana, now the Amapá State of Brazil. The three Guianas proper have a combined population of 1,718,651; Guyana: 804,567, Suriname: 612,985, and French Guiana: 301,099. Most of the population is along the coast. Due to the jungles to the south, the Guianas are one of the most sparsely populated regi ...
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Rio Negro (Amazon)
The Rio Negro ( "''Black River''"), or Guainía as it is known in its upper part, is the largest left tributary of the Amazon River (accounting for about 14% of the water in the Amazon basin), the largest blackwater river in the world, and one of the world's ten List of rivers by discharge, largest rivers by average discharge. Despite its high flow, the Rio Negro has a low Stream load, sediment load (5.76 million tonnes per year on average in Manaus). Geography Upper course The source of the Rio Negro lies in Colombia, in the Department of Guainía where the river is known as the ''Guainía River''. The young river generally flows in an east-northeasterly direction through the Puinawai Natural Reserve, Puinawai National Reserve, passing several small indigenous settlements on its way, such as Cuarinuma, Brujas, Santa Rosa and Tabaquén. After roughly the river starts forming the border between Colombia's Department of Guainía and Venezuela's Amazonas (Venezuelan state), ...
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