Rufous nightjar

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Rufous nightjar
JOAO-CORTA-PAU (Antrostomus rufus) (15846824680).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Clade: Strisores
Order: Caprimulgiformes
Family: Caprimulgidae
Genus: Antrostomus
Species:
A. rufus
Binomial name
Antrostomus rufus
(Boddaert, 1783)
Antrostomus rufus map.svg
Synonyms

Caprimulgus rufus

The rufous nightjar (Antrostomus rufus) is a species of nightjar in the family Caprimulgidae. It is found in Argentina, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, Guyana, Panama, Paraguay, Peru, Saint Lucia, Suriname, Trinidad and Tobago, and Venezuela. [2] [3]

Contents

Taxonomy and systematics

The rufous nightjar was described by the French polymath Georges-Louis Leclerc, Comte de Buffon in 1780 in his Histoire Naturelle des Oiseaux. [4] The bird was also illustrated in a hand-colored plate engraved by François-Nicolas Martinet in the Planches Enluminées D'Histoire Naturelle that was produced under the supervision of Edme-Louis Daubenton to accompany Buffon's text. [5] Neither the plate caption nor Buffon's description included a scientific name but in 1783 the Dutch naturalist Pieter Boddaert coined the binomial name Caprimulgas rufus in his catalogue of the Planches Enluminées. [6] The rufous nightjar is now placed in the genus Antrostomus that was erected by the French naturalist Charles Bonaparte in 1838. [7] [8] The generic name combines the Ancient Greek antron meaning "cavern" and stoma meaning "mouth". The specific epithet is Latin for "red". [9]

Four or five subspecies are generally recognized. A. r. saltarius is recognized by the Clements taxonomy and BirdLife International's Handbook of the Birds of the World (HBW). The International Ornithological Committee (IOC) does not but includes it within A. r. rutilus. A sixth subspecies, A. r. maximus, is recognized by some authors but not by the Clements, HBW, or the IOC; they include it within A. r. minimus. It is known only from the holotype [10] [11] [2] [12]

The subspecies are:

Description

The rufous nightjar is 25 to 30 cm (9.8 to 12 in) long. Males weight 88 to 98 g (3.1 to 3.5 oz) and females 89 to 98 g (3.1 to 3.5 oz). It is almost entirely reddish brown, with a buff collar on the sides and back of the neck and a white band under the throat. The upperparts have dark brown streaks, the wings are spotted and barred with dark brown, and the underparts are speckled with dark brown and white. The wings have no white, unlike those of many others of its family. The outer three pairs of tail feathers of the male have a large white spot at the end; those of the female have a pale buff tip. The subspecies differ somewhat in the intensity of the various colors and the size and extent of spots and speckles. A. r. saltarius, however, is significantly grayer than the others. [12]

Distribution and habitat

The rufous nightjar has a highly discontinuous distribution. The subspecies are found thus: [2] [12]

The South American Classification Committee of the American Ornithological Society (AOS) also places the species in Ecuador and Peru but does not note which subspecies are there. [13] [14]

The St. Lucia endemic subspecies of rufous nightjar (A. r. otiosus) inhabits dry scrub. The other subspecies inhabit a wide variety of landscapes from scrublands to primary and secondary forest. The landscapes vary in humidity from the dry Gran Chaco to the humid Amazon basin. [12]

Behavior

The rufous nightjar is most active at dawn and dusk. It roosts during the day, either on a low perch or on the ground under thick vegetation. [12]

Feeding

The rufous nightjar forages by sallies from a low perch such as a branch or fencepost. Its diet is insects though details are lacking. [12]

Breeding

The rufous nightjar lays its clutch of one or two eggs on bare ground without a conventional nest. It is usually hidden in low vegetation. The female incubates during the day. [12]

Vocalization

The rufous nightjar's song has been interpreted by several authors; two examples are "a loud, staccato chup, whi-whi-RIoh or chuck whip-his-WIDdow, repeated fairly rapidly" and "an energetic, rhythmic chuck, wick-wick-WEEoo." The song is usually given from a perch at any level up to 20 m (66 ft) above the ground. [12]

Status

The IUCN has assessed the rufous nightjar as being of Least Concern. It has a vary large range and population, though the latter is believed to be decreasing. No immeditate threats have been identified. [1]

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References

  1. 1 2 BirdLife International (2020). "Rufous Nightjar Antrostomus rufus". IUCN Red List of Threatened Species . 2020. Retrieved 13 October 2021.
  2. 1 2 3 Gill, F.; Donsker, D.; Rasmussen, P. (July 2021). "IOC World Bird List (v 11.2)" . Retrieved July 14, 2021.
  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 24 August 2021. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved August 24, 2021
  4. Buffon, Georges-Louis Leclerc de (1780). "L'engoulevent roux de Cayenne". Histoire Naturelle des Oiseaux (in French). Vol. 12. Paris: De L'Imprimerie Royale. pp. 268–270.
  5. Buffon, Georges-Louis Leclerc de; Martinet, François-Nicolas; Daubenton, Edme-Louis; Daubenton, Louis-Jean-Marie (1765–1783). "Crapaud-volant ou tette-chevre, de Cayenne". Planches Enluminées D'Histoire Naturelle. Vol. 8. Paris: De L'Imprimerie Royale. Plate 735.
  6. Boddaert, Pieter (1783). Table des planches enluminéez d'histoire naturelle de M. D'Aubenton : avec les denominations de M.M. de Buffon, Brisson, Edwards, Linnaeus et Latham, precedé d'une notice des principaux ouvrages zoologiques enluminés (in French). Utrecht. p. 46, Number 735.
  7. Bonaparte, Charles Lucien (1838). A Geographical and Comparative List of the Birds of Europe and North America. London: John Van Voorst. p. 8.
  8. Gill, Frank; Donsker, David, eds. (2019). "Frogmouths, Oilbird, potoos, nightjars". World Bird List Version 9.2. International Ornithologists' Union. Retrieved 21 July 2019.
  9. Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp.  50, 343. ISBN   978-1-4081-2501-4.
  10. Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, 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/ Retrieved August 25, 2021
  11. 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
  12. 1 2 3 4 5 6 7 8 Rumelt, R. (2020). Rufous Nightjar (Antrostomus rufus), 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.rufnig1.01 retrieved October 13, 2021
  13. Freile, Juan F.; Olmstead, S.; Athanas, N.; Brinkhuizen, D.M.; Navarrete, L.; Nilsson, J.; Sánchez-Nivicela, M.; Solano-Ugalde, A.; Greenfield, P.J. (December 23, 2020). "Species lists of birds for South American countries and territories: Ecuador". South American Classification Committee of the American Ornithological Society. Retrieved October 13, 2021.
  14. Plenge, Manuel A.; Schulenberg, Thomas S.; Valqui, Thomas (August 3, 2020). "Species lists of birds for South American countries and territories: Peru". South American Classification Committee of the American Ornithological Society. Retrieved October 13, 2021.