Ancash tapaculo

The Ancash tapaculo (Scytalopus affinis) is a species of bird in the family Rhinocryptidae. It is endemic to Peru.[2]

Ancash tapaculo
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Class: Aves
Order: Passeriformes
Family: Rhinocryptidae
Genus: Scytalopus
Species:
S. affinis
Binomial name
Scytalopus affinis
Zimmer, 1939

Taxonomy and systematics

The Ancash tapaculo was originally described as Scytalopus magellanicus affinis, a subspecies of Magellanic tapaculo.[3] Following a study published in 1997, it was elevated to species rank because of differences in their vocalizations.[4]

Description

The male Ancash tapaculo's head and upper back are gray and the rest of the upper parts dark brown. The underparts are pale gray, and the flanks and vent are buffy with distinct bars. The female is similar but the upper parts are browner. The juvenile's head and upper back are brownish gray and the rest of the upper parts olive brown; all are barred. The underparts are gray, and the flanks and vent are olive brown with dusky bars.[5]

Distribution and habitat

The Ancash tapaculo was described from the Department of Ancash, Peru.[3] Since then it has been recorded in the adjoining departments of La Libertad, Huánuco, and Lima. It is found at elevations of 3,000 to 4,600 m (9,800 to 15,100 ft).[5]

It inhabits tussocky high elevation grassland and rocky areas with grass. It is often found in or near Polylepis woodland or Gynoxys shrubs.[5]

Behavior

Feeding

Little is known about the Ancash tapaculo's diet and foraging phenology, though the species is assumed to be insectivorous.[5]

Breeding

There is also little known about the Ancash tapaculo's breeding behavior. Two nests were balls of grass and moss with a side entrance. Eggs and nestlings have been reported in February.[5]

Vocalization

The Ancash tapaculo's song is a "churr" note repeated for 30 or more seconds . The scold call is also a "churr", but longer and dryer than those of the song .[5]

Status

The IUCN has assessed the Ancash tapaculo as being of Least Concern. Though it has a small range and an unknown population size, the population appears to be stable and not under immediate threat.[1][5]

References
  1. BirdLife International (2016). "Scytalopus affinis". IUCN Red List of Threatened Species. 2016: e.T22733255A95055949. doi:10.2305/IUCN.UK.2016-3.RLTS.T22733255A95055949.en. Retrieved November 17, 2021.
  2. Gill, F.; Donsker, D.; Rasmussen, P. (January 2021). "IOC World Bird List (v 11.1)". Retrieved January 14, 2021.
  3. Zimmer, J.T. (1939). Studies of Peruvian birds 32. The genus Scytalopus. Amer. Mus. Novit.. 1044: 1-18
  4. Krabbe, N., and T.S. Schulenberg. 1997. Species limits and natural history of Scytalopus tapaculos (Rhinocryptidae), with descriptions of the Ecuadorian taxa, including three new species. Pages 47-88 in J. V. Remsen, Jr. (editor), Studies in neotropical ornithology honoring Ted Parker. Ornithological Monographs number 48. American Ornithologists' Union, Washington, D.C.
  5. Schulenberg, T. S. (2020). Ancash Tapaculo (Scytalopus affinis), 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.anctap1.01 retrieved April 30, 2021
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