Roraiman barbtail
Roraiman barbtail | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Furnariidae |
Genus: | Roraimia Chapman, 1929 |
Species: | R. adusta
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Binomial name | |
Roraimia adusta | |
Synonyms | |
Synallaxis adusta |
The Roraiman barbtail (Roraimia adusta) is a species of
Taxonomy and systematics
The Roraiman barbtail is the only member of its genus. Beyond that its taxonomy is unsettled. The
- R. a. obscurodorsalis Phelps, WH & Phelps, WH Jr, 1948
- R. a. mayri (Phelps, WH Jr, 1977)
- R. a. duidae Chapman, 1939
- R. a. adusta (Salvin & Godman, 1884)
However, the
At various times the Roraiman barbtail has been treated as a member of genus Margarornis and as a subspecies of the stripe-breasted spinetail (Synallaxis cinnamomea). Multiple genetic studies refute those treatments and support its placement in a unique genus.[5][6]
The species' English name and
This article follows the four-subspecies model.
Description
The Roraiman barbtail is 14 to 15 cm (5.5 to 5.9 in) long and weighs 14 to 20 g (0.49 to 0.71 oz). It is a dramatically patterned furnariid that resembles a Margarornis treerunner but is unique in its range. The sexes have the same plumage. Adults of the nominate subspecies R. a. adusta have dark blackish brown
Subspecies R. a. obscurodorsalis is darker overall than the nominate and has blackish edges on the feathers of its back. R. a. duidae has slightly brighter upperparts and a less reddish supercilium than the nominate. R. a. mayri has a browner, less chestnut, back than the nominate.[6]
Distribution and habitat
The Roraiman barbtail is found in the tepui region where Venezuela, Guyana, and Brazil meet. The subspecies are found thus:[2][6]
- R. a. obscurodorsalis: Cerro Paraque in the extreme northwestern part of southeastern Venezuela's Amazonas state
- R. a. mayri: Mount Roraima in southeastern Venezuela's Bolívar state
- R. a. duidae: Cerro Duida, Cerro Huachamacari, and Serranía Parú in Venezuela's central and southern Amazonas state
- R. a. adusta: Mount Roraima and nearby tepuis in northern Brazil's Roraima state and Mt. Tewk-quay in western Guyana
The Roraiman barbtail inhabits humid montane evergreen forest and
Behavior
Movement
The Roraiman barbtail is a year-round resident throughout its range.[6]
Feeding
The Roraiman barbtail feeds on
Breeding
Nothing is known about the Roraiman barbtail's breeding biology.[6]
Vocalization
The Roraiman barbtail's song is " 7–8 clear notes that ascend rapidly, 'tee-tee-tee-teuu-teuu-tuutuu' ".[6] Its call is a "very high, inquiring 'whit?' ".[8]
Status
The
References
- ^ . Retrieved 10 November 2023.
- ^ Rasmussen, Pamela, eds. (July 2023). "Ovenbirds, woodcreepers". IOC World Bird List. v 13.2. Retrieved July 31, 2023.
- ^ HBW and BirdLife International (2022) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 7. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v7_Dec22.zip retrieved December 13, 2022
- ^ 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. Sullivan, and C. L. Wood. 2023. The eBird/Clements checklist of birds of the world: v2023. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ retrieved October 28, 2023
- ^ 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 28 September 2023. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved October 20, 2023
- ^ a b c d e f g h i j Remsen, Jr., J. V. (2020). Roraiman Barbtail (Roraimia adusta), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.rorbar1.01 retrieved November 10, 2023
- ^ Salvin, Osbert; Godman, F. DuCane (1884). "Notes on Birds from British Guiana". Ibis. 26 (4): 443–452. Retrieved November 10, 2023.
- ^ ISBN 978-0-19-530155-7.