Inambari gnatcatcher

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Inambari gnatcatcher
Polioptila attenboroughi Inambari Gnatcatcher; Porto Velho, Rondonia, Brazil.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Polioptilidae
Genus: Polioptila
Species:
P. attenboroughi
Binomial name
Polioptila attenboroughi
Whittaker et al., 2013
Polioptila attenboroughi map.svg

The Inambari gnatcatcher (Polioptila attenboroughi) is a species of bird in the family Polioptilidae. It is endemic to Brazil. [1]

Contents

Taxonomy and systematics

The Inambari gnatcatcher was described as a new species in 2013. [2] The South American Classification Committee of the American Ornithological Society (SACC/AOS), the International Ornithological Committee (IOC), and the Clements taxonomy accepted it as a distinct species beginning in mid-2019. [3] [4] [5] It had earlier been treated as a subspecies of the Guianan gnatcatcher (Polioptila guianensis), and BirdLife International (BLI) retains it there as of December 2020. [6]

The Inambari gnatcatcher is monotypic. [1]

Description

The holotype Inambari gnatcatcher, an adult male, weighed 6 g (0.21 oz). Its head, nape, and neck are a uniform plumbeous gray. The throat, breast, upper belly, and flanks are also plumbeous gray, palest near the bill. The lower belly is white. It has a broken white eye ring. The innermost feathers of its tail are black and the outermost approximately 80% white, with those between intergrading. [2]

Distribution and habitat

The Inambari gnatcatcher's full range is not known. All of the few records are from the Brazilian central Amazon Basin south of the Rio Solimões (the Upper Amazon) and west of the Rio Madeira. The region is called the Inambari area of endemism. "So far as is known, Inambari Gnatcatcher inhabits the canopy of tall, humid, upland sandy-soil forest" at less than 500 m (1,600 ft) of elevation. [7]

Behavior

Feeding

The details of the Inambari gnatcatcher's diet is unknown but it is probably small invertebrates like that of other Polioptila gnatcatchers. It forages alone or in pairs and seems to always associate with mixed-species foraging flocks. It mostly gleans prey from foliage but also sallies out to catch flying insects. [7]

Breeding

"The nest, eggs, and breeding biology of Inambari Gnatcatcher are completely unknown." [7]

Vocalization

The Inambari gnatcatcher's loudsong is "an evenly paced series of six notes at a nearly level frequency" . It also has a more complex song. [7]

Status

The IUCN has not assessed the Inambari gnatcatcher. "The recent advancement of soybean plantations and general infrastructure along the BR-319 highway linking Manaus to Porto Velho in Brazil, which bisects the known range of Inambari Gnatcatcher, is a clear threat to this species." [7]

See also

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References

  1. 1 2 Gill, F.; Donsker, D.; Rasmussen, P. (January 2021). "IOC World Bird List (v 11.1)" . Retrieved January 14, 2021.
  2. 1 2 Whittaker, A., Aleixo, A., Whitney, B.M., Smith, B.T. and Klicka, J. (2013). A distinctive new species of gnatcatcher in the Polioptila guianensis complex (Aves: Polioptilidae) from western Amazonian Brazil. Pp. 301–305 in: del Hoyo, J., Elliott, A., Sargatal, J. & Christie, D.A. eds. (2013). Handbook of the Birds of the World. Special Volume: New Species and Global Index. Lynx Edicions, Barcelona
  3. 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 23 May 2021. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved May 24, 2021
  4. Gill, F.; Donsker, D. (June 2019). "IOC World Bird List (v 9.2)" . Retrieved June 22, 2019.
  5. Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2019. The eBird/Clements Checklist of Birds of the World: v2019. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ Retrieved August 15, 2019
  6. 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 MB] retrieved May 27, 2021
  7. 1 2 3 4 5 Greeney, H. F., J. L. Atwood, S. B. Lerman, and G. M. Kirwan (2020). Inambari Gnatcatcher (Polioptila attenboroughi), version 1.0. In Birds of the World (S. M. Billerman, B. K. Keeney, P. G. Rodewald, and T. S. Schulenberg, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.inagna1.01 retrieved May 29, 2021