Andean swift

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Andean swift
Aeronautes andecolus 1847.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Clade: Strisores
Order: Apodiformes
Family: Apodidae
Genus: Aeronautes
Species:
A. andecolus
Binomial name
Aeronautes andecolus
Andean Swift ebird data map.png
Global range
  Year-Round Range
  Summer Range
  Winter Range
Synonyms [2]
  • Micropus andecolus
  • Apus andecolus

The Andean swift (Aeronautes andecolus) is a species of bird in subfamily Apodinae of the swift family Apodidae. It is found in Argentina, Bolivia, Chile, and Peru. [3] [4]

Contents

Taxonomy and systematics

The Andean swift was at one time placed in genus Micropus which was later merged into Aeronautes, and also in genus Apus from which it was split. [2] Three subspecies are recognized, the nominate A. a. andecolus, A. a. parvulus, and A. a. peruvianus. [3]

Andean swift flying Andean Swift.jpg
Andean swift flying

Description

The Andean swift is about 14 cm (5.5 in) long. It has sharply pointed wings and a long deeply forked tail. The sexes are alike. Adults of the nominate subspecies have mostly black upperparts with a white collar and band on the rump. Their face and underparts are mostly white to off-white with mottled buff on the flanks and vent. Subspecies A. a. parvulus is smaller than the nominate and the borders between black and white areas are very sharply defined. A. a. peruvianus is also smaller than the nominate. Its tail is shorter and less deeply forked, its white plumage is purer, and it has darker undertail coverts. [5]

Distribution and habitat

Subspecies A. a. parvulus of the Andean swift is the northernmost; it is found on the western slope of the Andes from Peru's Cajamarca Department south into far northern Chile's Tarapacá Region. The nominate A. a. andecolus is found from central Bolivia south to Río Negro Province in west central Argentina. A. a. peruvianus is restricted to the east slope of the Andes in southeastern Peru. [5]

The Andean swift mostly inhabits semi-arid montane scrub landscapes though it is also found in both drier and more humid areas. It is occasionally seen over forested slopes. In elevation it mostly ranges between 2,500 and 3,550 m (8,200 and 11,600 ft) in Peru and Bolivia and between 2,000 and 2,500 m (6,600 and 8,200 ft) in Argentina. It has been recorded above 4,100 m (13,500 ft) in Peru. [5]

Behavior

Movement

The Andean swift is a year-round resident throughout its range, though it may temporarily move to lower elevations to avoid snowstorms. [5]

Feeding

Like all swifts, the Andean is an aerial insectivore, but no details of its diet are known. It often forages in flocks with wintering chimney swifts (Chaetura pelagica). [5]

Breeding

Little is known about the Andean swift's breeding biology. It has been documented nesting in holes in steep rock faces, including behind waterfalls, but the nest itself has not been described. [5]

Vocalization

The Andean swift's most common vocalization is "a buzzy, grating 'tzee-tz-tz-trrr...tzee-tz-tz-tzee...'." It also makes "a series of single notes 'tzree..tzree..tzree...'." [5]

Status

The IUCN has assessed the Andean 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 generally considered common, though uncommon in northern Chile and "local and irregular" in parts of Argentina. [5]

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References

  1. 1 2 BirdLife International (2016). "Andean Swift Aeronautes andecolus". IUCN Red List of Threatened Species . 2016: e.T22686739A93124777. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22686739A93124777.en . Retrieved 7 October 2022.
  2. 1 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. 1 2 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. 1 2 3 4 5 6 7 8 Chantler, P. and P. F. D. Boesman (2020). Andean Swift (Aeronautes andecolus), 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.andswi1.01 retrieved October 7, 2022
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