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Great dusky swift

From Wikipedia, in a visual modern way
great dusky swift
CypseloidesSenexAtIguassuFalls.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Apodiformes
Family: Apodidae
Genus: Cypseloides
Species:
C. senex
Binomial name
Cypseloides senex
(Temminck, 1826)
Synonyms

Aerornis senex[2]

The great dusky swift (Cypseloides senex) is a species of bird in subfamily Cypseloidinae of the swift family Apodidae.[3][4] It is found in Argentina, Brazil, Paraguay, and possibly Bolivia.[5]

Discover more about Great dusky swift related topics

Bird

Bird

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 5.5 cm (2.2 in) bee hummingbird to the 2.8 m common ostrich. There are about ten thousand living species, more than half of which 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 evolved for swimming.

Cypseloidinae

Cypseloidinae

The Cypseloidinae are a subfamily of swifts and contain the following species:Genus CypseloidesSpot-fronted swift White-chinned swift Sooty swift White-chested swift Rothschild's swift Great dusky swift White-fronted swift American black swift Subspecies: C. n. borealis, C. n. costaricensis, & C. n. nigerGenus StreptoprocneBiscutate swift Subspecies: S. b. seridoensis, & S. b. biscutata Tepui swift White-naped swift White-collared swift Subspecies: S. z. mexicana, S. z. bouchellii, S. z. pallidifrons, S. z. minor, S. z. albicincta, S. z. subtropicalis, S. z. altissima, S. z. kuenzeli, & S. z. zonaris Chestnut-collared swift Subspecies: S. r. griseifrons, S. r. brunnitorques. & S. r. rutila

Argentina

Argentina

Argentina, officially the Argentine Republic, is a country in the southern half of South America. Argentina covers an area of 2,780,400 km2 (1,073,500 sq mi), making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. It shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, and a part of Antarctica.

Brazil

Brazil

Brazil, officially the Federative Republic of Brazil, is the largest country in South America and in Latin America. At 8.5 million square kilometers (3,300,000 sq mi) and with over 217 million people, Brazil is the world's fifth-largest country by area and the seventh most populous. Its capital is Brasília, and its most populous city is São Paulo. The federation is composed of the union of the 26 states and the Federal District. It is the only country in the Americas to have Portuguese as an official language. It is one of the most multicultural and ethnically diverse nations, due to over a century of mass immigration from around the world, and the most populous Roman Catholic-majority country.

Paraguay

Paraguay

Paraguay, officially the Republic of Paraguay, is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to the east and northeast, and Bolivia to the northwest. It has a population of 7 million, nearly 3 million of whom live in the capital and largest city of Asunción, and its surrounding metro. Although one of only two landlocked countries in South America, Paraguay has ports on the Paraguay and Paraná rivers that give exit to the Atlantic Ocean, through the Paraná-Paraguay Waterway.

Bolivia

Bolivia

Bolivia, officially the Plurinational State of Bolivia, is a landlocked country located in western-central South America. It is bordered by Brazil to the north and east, Paraguay to the southeast, Argentina to the south, Chile to the southwest and Peru to the west. The seat of government and executive capital is La Paz, while the constitutional capital is Sucre. The largest city and principal industrial center is Santa Cruz de la Sierra, located on the Llanos Orientales, a mostly flat region in the east of the country.

Taxonomy and systematics

The great dusky swift is monotypic.[3]

Description

The great dusky swift is the largest member of genus Cypseloides. It is 18 cm (7.1 in) long and weighs 56 to 110 g (2.0 to 3.9 oz). The sexes have the same plumage. Adults have a chocolate brown crown and throat with pale gray edges to the feathers, giving a frosted appearance to the face. Their back is a darker brown, their rump a brown intermediate between the head and back, and their tail blackish brown. Their undersides are a paler brown than the back. The upper side of the wing is mostly brown and the underside somewhat lighter. Juveniles are very similar to adults with the addition on pale fringes to the wing feathers.[6]

Distribution and habitat

The great dusky swift is found in Brazil from southern Pará and much of Mato Grosso east into Bahia and south to Rio Grande do Sul, in eastern Paraguay, and in northeastern Argentina's Misiones Province. Undocumented sight records in Bolivia lead the South American Classification Committee of the American Ornithological Society to treat it as hypothetical in that country. Its principal habitats are tropical evergreen forest, temperate forest, and second-growth scrublands. The species roosts around waterfalls and is known for flying through the Iguazu Falls on the border of Brazil and Argentina.[6][5]

Discover more about Distribution and habitat related topics

Pará

Pará

Pará is a state of Brazil, located in northern Brazil and traversed by the lower Amazon River. It borders the Brazilian states of Amapá, Maranhão, Tocantins, Mato Grosso, 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.

Mato Grosso

Mato Grosso

Mato Grosso is one of the states of Brazil, the third largest by area, located in the Central-West region. The state has 1.66% of the Brazilian population and is responsible for 1.9% of the Brazilian GDP.

Bahia

Bahia

Bahia is one of the 26 states of Brazil, located in the Northeast Region of the country. It is the fourth-largest Brazilian state by population and the 5th-largest by area. Bahia's capital is the city of Salvador, on a spit of land separating the Bay of All Saints from the Atlantic. Once a monarchial stronghold dominated by agricultural, slaving, and ranching interests, Bahia is now a predominantly working-class industrial and agricultural state. The state is home to 7% of the Brazilian population and produces 4.2% of the country's GDP.

Rio Grande do Sul

Rio Grande do Sul

Rio Grande do Sul is a state in the southern region of Brazil. It is the fifth-most-populous state and the ninth largest by area. Located in the southernmost part of the country, Rio Grande do Sul is bordered clockwise by Santa Catarina to the north and northeast, the Atlantic Ocean to the east, the Uruguayan departments of Rocha, Treinta y Tres, Cerro Largo, Rivera and Artigas to the south and southwest, and the Argentine provinces of Corrientes and Misiones to the west and northwest. The capital and largest city is Porto Alegre. The state has the highest life expectancy in Brazil, and the crime rate is relatively low compared to the Brazilian national average. Despite the high standard of living, unemployment is still high in the state, as of 2017. The state has 5.4% of the Brazilian population and it is responsible for 6.6% of the Brazilian GDP.

Paraguay

Paraguay

Paraguay, officially the Republic of Paraguay, is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to the east and northeast, and Bolivia to the northwest. It has a population of 7 million, nearly 3 million of whom live in the capital and largest city of Asunción, and its surrounding metro. Although one of only two landlocked countries in South America, Paraguay has ports on the Paraguay and Paraná rivers that give exit to the Atlantic Ocean, through the Paraná-Paraguay Waterway.

Argentina

Argentina

Argentina, officially the Argentine Republic, is a country in the southern half of South America. Argentina covers an area of 2,780,400 km2 (1,073,500 sq mi), making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. It shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, and a part of Antarctica.

Misiones Province

Misiones Province

Misiones is one of the 23 provinces of Argentina, located in the northeastern corner of the country in the Mesopotamia region. It is surrounded by Paraguay to the northwest, Brazil to the north, east and south, and Corrientes Province of Argentina to the southwest.

American Ornithological Society

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, The Auk and The Condor as well as the AOS Checklist of North American Birds.

Evergreen forest

Evergreen forest

An evergreen forest is a forest made up of evergreen trees. They occur across a wide range of climatic zones, and include trees such as conifers and holly in cold climates, eucalyptus, Live oak, acacias, magnolia, and banksia in more temperate zones, and rainforest trees in tropical zones.

Iguazu Falls

Iguazu Falls

Iguazú Falls or Iguaçu Falls are waterfalls of the Iguazu River on the border of the Argentine province of Misiones and the Brazilian state of Paraná. Together, they make up the largest waterfall system in the world. The falls divide the river into the upper and lower Iguazu. The Iguazu River rises near the heart of the city of Curitiba. For most of its course, the river flows through Brazil; however, most of the falls are on the Argentine side. Below its confluence with the San Antonio River, the Iguazu River forms the border between Argentina and Brazil.

Behavior

Migration

The great dusky swift is believed to be a year-round resident throughout its range.[6]

Feeding

Like all swifts, the great dusky is an aerial insectivore. Its diet is not known in detail but includes insects of at least five families. It often feeds in flocks that sometimes include white-collared swifts (Streptoprocne zonaris).[6]

Great dusky swift on nest
Great dusky swift on nest

Breeding

The great dusky swift nests in large colonies on a cliff, either beside or behind a waterfall. The nest is made of moss and pebbles cemented with mud.[6]

Dickcissel male perched on a metal pole singing, with neck stretched and beak open.

Songs and calls
Listen to great dusky swift on xeno-canto

Vocalization

The great dusky swift's principal vocalization is described as "a ti-ti-ti sound followed by a buzz, tirr-tshaarr."[6]

Status

The IUCN has assessed the great dusky swift as being of Least Concern. It has a large range, and though its population size is not known it is believed to be stable. No immediate threats have been identified.[1] It is "potentially is threatened by the building of dams, as the construction of dams could flood waterfalls, interfering with the breeding and roosting locations of this species."[6]

Source: "Great dusky swift", Wikipedia, Wikimedia Foundation, (2022, October 9th), https://en.wikipedia.org/wiki/Great_dusky_swift.

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Further Reading

Grey-rumped swift

Fork-tailed palm swift

White-bellied woodstar

Rufous-webbed brilliant

Dusky-throated hermit

Many-spotted hummingbird

White-tipped swift

Chapman's swift

Pale-rumped swift

Costa Rican swift

Spot-fronted swift

White-chinned swift

Sooty swift

White-chested swift

Rothschild's swift

Tepui swift

Chestnut-capped puffbird

Eastern striolated puffbird
References
  1. ^ a b BirdLife International (2016). "Great Dusky Swift Cypseloides senex". IUCN Red List of Threatened Species. 2016: e.T22686467A93113213. doi:10.2305/IUCN.UK.2016-3.RLTS.T22686467A93113213.en. Retrieved 2 October 2022.
  2. ^ Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 July 2022. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved July 24, 2022
  3. ^ a b Gill, F.; Donsker, D.; Rasmussen, P., eds. (August 2022). "Owlet-nightjars, treeswifts, swifts". IOC World Bird List. v 12.2. Retrieved August 9, 2022.
  4. ^ HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip retrieved August 7, 2022
  5. ^ a b Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 July 2022. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved July 24, 2022
  6. ^ a b c d e f g Rosenblatt, C. (2020). Great Dusky Swift (Cypseloides senex), version 1.0. In Birds of the World (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.grdswi1.01 retrieved October 2, 2022
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