Black-faced antthrush

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Black-faced antthrush
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Formicariidae
Genus: Formicarius
Species:
F. analis
Binomial name
Formicarius analis

The black-faced antthrush (Formicarius analis), is a species of passerine bird in the family Formicariidae.

Taxonomy[edit]

The black-faced antthrush was formally described in 1837 by the French naturalists Alcide d'Orbigny and Frédéric de Lafresnaye from a specimen collected in Bolivia. They coined the binomial name Myothera analis.[2][3] The specific epithet is from the Modern Latin analis meaning "relating to the undertail-coverts of the vent".[4] The black-faced antthrush is now placed in the genus Formicarius that was introduced by the Dutch naturalist Pieter Boddaert in 1783.[5][6]

Eleven subspecies are recognised:[6]

  • F. a. umbrosus Ridgway, 1893 – east Honduras to west Panama
  • F. a. hoffmanni (Cabanis, 1861) – southwest Costa Rica and southwest Panama
  • F. a. panamensis Ridgway, 1908 – east Panama and northwest Colombia
  • F. a. virescens Todd, 1915 – Sierra Nevada de Santa Marta (northeast Colombia)
  • F. a. saturatus Ridgway, 1893 – north Colombia, northwest Venezuela and Trinidad
  • F. a. griseoventris Aveledo & Ginés, 1950 – Perijá Mountains (northeast Colombia and northwest Venezuela)
  • F. a. connectens Chapman, 1914 – east Colombia
  • F. a. zamorae Chapman, 1923 – east Ecuador, northeast Peru and west Brazil
  • F. a. crissalis (Cabanis, 1861) – east Venezuela, the Guianas and northeast Brazil
  • F. a. analis (d'Orbigny & Lafresnaye, 1837) – east, southeast Peru, north Bolivia and central Brazil
  • F. a. paraensis Novaes, 1957 – southeast Amazonian Brazil

The subspecies hoffmanni is sometimes recognised as a distinct species, the Panama antthrush, based primarily of its different song.[7][8] The Mayan antthrush (Formicarius moniliger) was formerly considered conspecific with the black-faced antthrush.[6][9]

Description[edit]

The black-faced antthrush is similar in general appearance to a rail, with a dumpy body, horizontal carriage, stout bill and short-cocked tail. It walks rather than hops, with a jerky motion reminiscent of a rail. It is typically 18–19 cm (7.1–7.5 in) long, and weighs 59 g (2.1 oz). The upper parts are rufous-brown, and the underparts are paler brown, except for the black face and throat, and rufous under the tail and behind the eye. The sexes are alike in plumage.

Distribution and habitat[edit]

Chan Chich Lodge area, Belize – flash photo

It is a common and widespread forest bird in the tropical New World, from Honduras through Central America to the northern regions of South America. It occurs in Colombia, Venezuela, Trinidad and Brazil, and the Amazon Basin, except for the northwest region.

Behaviour[edit]

The antthrush builds a leaf-lined nest in a cavity in a hollow branch or stump where two white eggs are laid. It is an insectivore which feeds on ants and other insects. It is quite terrestrial, feeding mainly on the ground. It will follow columns of army ants. The call is a loud whistle followed by 2–10 descending whistles, WHU! wu-wu-wu-wu-wu-wu-wu-wu-wu.

Song of bird from Arima Valley, Trinidad

References[edit]

  1. ^ BirdLife International (2020). "Formicarius analis". IUCN Red List of Threatened Species. 2020: e.T103661243A140073609. doi:10.2305/IUCN.UK.2020-3.RLTS.T103661243A140073609.en. Retrieved 12 November 2021.
  2. ^ d'Orbigny, Alcide; Lafresnaye, Frédéric de (1837). "Synopsis avium". Magasin de Zoologie (in Latin). 7 (2): 1–88 [14].
  3. ^ Peters, James Lee, ed. (1951). Check-List of Birds of the World. Vol. 7. Cambridge, Massachusetts: Museum of Comparative Zoology. p. 242.
  4. ^ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 46. ISBN 978-1-4081-2501-4.
  5. ^ 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. pp. 43, 44, 50.
  6. ^ a b c Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (July 2020). "Antthrushes, antpittas, gnateaters, tapaculos, crescentchests". IOC World Bird List Version 10.2. International Ornithologists' Union. Retrieved 14 December 2020.
  7. ^ Howell, Steve N.G. "The specific status of black-faced antthrushes in Middle America" (PDF). Cotinga. 1: 21–25.
  8. ^ Ridgely, Robert S.; Tudor, Guy (2009). Birds of South America: Passerines. Helm Field Guides. London: Christopher Helm. p. 688. ISBN 978-1-408-11342-4.
  9. ^ Chesser, R.T.; Billerman, S.M.; Burns, K.J.; Cicero, C.; Dunn, J.L.; Kratter, A.W.; Lovette, I.J.; Mason, N.A.; Rasmussen, P.C.; Remsen, J.V.J.; Stotz, D.F.; Winker, K. (2020). "Sixty-first Supplement to the American Ornithological Society's Check-list of North American Birds". The Auk. 137 (ukaa030). doi:10.1093/auk/ukaa030.

Further reading[edit]

  • Skutch, Alexander F. (1969). "Black-faced antthrush" (PDF). Life Histories of Central American Birds III: Families Cotingidae, Pipridae, Formicariidae, Furnariidae, Dendrocolaptidae, and Picidae. Pacific Coast Avifauna, Number 35. Berkeley, California: Cooper Ornithological Society. pp. 275–289. Skutch describes the race Formicarius analis hoffmanni.

External links[edit]


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