Junin antpitta

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Junin antpitta
Grallaria obscura Junin Antpitta; Junin, Peru.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Grallariidae
Genus: Grallaria
Species complex: Grallaria rufula complex
Species:
G. obscura
Binomial name
Grallaria obscura
Grallaria obscura map.svg
Synonyms
  • Grallaria rufula obscura

The Junin antpitta (Grallaria obscura) is a species of bird in the family Grallariidae. It is endemic to the Peruvian Department of Junín. [1]

Contents

Taxonomy and systematics

The Junin antpitta was originally described in 1896 as the subspecies G. rufula obscura of the rufous antpitta. Research published in 2020 showed that it was a distinct species, and another 2020 publication confirmed that it is part of the rufous antpitta species complex of some 15 species. [2] [3] The International Ornithological Committee and the Clements taxonomy recognized the new species in 2021. [4] [5] However, as of early 2024 BirdLife International's Handbook of the Birds of the World (HBW) retains it as a subspecies of G. rufula for which it also retains the English name rufous antpitta. [6]

The Junin antpitta is named after the Department of Junín, Peru, the only department in which it occurs. [2] [7]

The Junin antpitta is monotypic. [1] It, the Chachapoyas antpitta (G. gravesi), and the Panao antpitta (G. oneilli) are sister species. [2] [7]

Description

Grallaria antpittas are a "wonderful group of plump and round antbirds whose feathers are often fluffed up...they have stout bills [and] very short tails". [8] The Junin antpitta is about 14.5 to 15 cm (5.7 to 5.9 in) long. The sexes have the same plumage. Adults have a mostly dark reddish yellow-brown crown, upperparts, wings, and tail with lighter edges on the flight feathers. They have a pale buff eyering. Their throat and breast are reddish yellow-brown that is paler on the belly. The center of their belly is whitish and their flanks are a reddish yellow-brown whose intensity is between those of the upperparts and breast. Both sexes have a dark brown iris, a black bill, and light blue-gray legs and feet. [2] [7]

Distribution and habitat

The Junín antpitta is found on the eastern slope of the Peruvian Andes in the department of Junín. Its range is bounded in the north by the Perené and Paucartambo rivers, in the west by the Ene River, and in the south by the Mantaro River. It is separated from the Panao antpitta by the Perené and Paucartambo rivers and from the Urubamba antpitta (G. occabambae) by the Apurímac River. Its exact habitat requirements have not been documented. It is thought to favor the floor and understory of humid montane forest heavy with moss and epiphytes and with much Chusquea bamboo. In elevation it is known between 3,000 and 3,600 m (9,800 and 11,800 ft). [1] [2] [3] [7] [ excessive citations ]

Behavior

Movement

The Junin antpitta is assumed to be resident throughout its range. [7]

Feeding

The Junin antpitta's diet is not known but is assumed to be similar to those of other Grallaria antpittas. They feed on arthropods, earthworms, and other invertebrates. It runs or hops on the forest floor and stops to find prey by flipping aside leaf litter and probing the soil. [2] [7]

Breeding

Nothing is known about the Junin antpitta's breeding biology. [7]

Vocalization

The Junin antpitta's long song is "a relatively slow series of buzzy notes at an even pitch, but slowing slightly towards the end of the song". Its short song is an "evenly pitched, modulated, two-noted song initiated by a single, abrupt note followed by a much longer buzzy note, the whole song lasting c 0.75-1.25 seconds". It appears to sing mostly at dawn, and usually from the ground or a low perch. [7]

Status

The IUCN follows HBW taxonomy and so has not assessed the Junin antpitta separately from the multi-subspecies "rufous" antpitta G. rufulasensu lato. [9] It suspected but not confirmed to occur in two protected areas. The habitat in its range "is relatively intact, on the whole, but at a local scale many portions have been severely impacted by grazing, burning, and crop cultivation". [7]

Related Research Articles

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References

  1. 1 2 3 Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (August 2024). "Antthrushes, antpittas, gnateaters, tapaculos, crescentchests". IOC World Bird List. v 14.2. Retrieved 19 August 2024.
  2. 1 2 3 4 5 6 Isler, Morton L.; Chesser, R. Terry; Robbins, Mark B.; Cuervo, Andrés M.; Cadena, Carlos Daniel & Hosner, Peter A. (21 July 2020). "Taxonomic evaluation of the Grallaria rufula (Rufous Antpitta) complex (Aves: Passeriformes: Grallariidae) distinguishes sixteen species". Zootaxa . 4817 (1): zootaxa.4817.1.1. doi:10.11646/zootaxa.4817.1.1. ISSN   1175-5334. PMID   33055681. S2CID   222829674.
  3. 1 2 Chesser, R. Terry; Isler, Morton L.; Cuervo, Andrés M.; Cadena, C. Daniel; Galen, Spencer C.; Bergner, Laura M.; Fleischer, Robert C.; Bravo, Gustavo A.; Lane, Daniel F. & Hosner, Peter A. (1 July 2020). "Conservative plumage masks extraordinary phylogenetic diversity in the Grallaria rufula (Rufous Antpitta) complex of the humid Andes". The Auk . 137 (3). doi: 10.1093/auk/ukaa009 . ISSN   0004-8038.
  4. Gill, F, D Donsker, and P Rasmussen (Eds). 2021. IOC World Bird List (v 11.2). Doi 10.14344/IOC.ML.11.2. http://www.worldbirdnames.org/
  5. Clements, T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of birds of the world: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
  6. HBW and BirdLife International (2024). Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 8.1. Available at: https://datazone.birdlife.org/species/taxonomy retrieved 26 August 2024
  7. 1 2 3 4 5 6 7 8 9 Greeney, H. F. and A. J. Spencer (2021). Junin Antpitta (Grallaria obscura), version 1.1. In Birds of the World (B. K. Keeney, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.rufant9.01.1 retrieved 10 September 2024
  8. Ridgely, Robert S.; Greenfield, Paul J. (2001). The Birds of Ecuador: Field Guide. Vol. II. Ithaca: Cornell University Press. pp. 436–437. ISBN   978-0-8014-8721-7.
  9. BirdLife International (2017). "Rufous Antpitta Grallaria rufula". IUCN Red List of Threatened Species . 2017: e.T103660383A118546700. doi: 10.2305/IUCN.UK.2017-3.RLTS.T103660383A118546700.en . Retrieved 10 September 2024.