Black-throated trogon

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Black-throated trogon
Black-throated Trogon.jpg
Adult male in Costa Rica
Black-throated Trogon. trogon rufus female - Flickr - gailhampshire.jpg
Adult female in Panama
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Trogoniformes
Family: Trogonidae
Genus: Trogon
Species:
T. rufus
Binomial name
Trogon rufus
Gmelin, JF, 1788
Trogon rufus map.svg

The black-throated trogon, also known as yellow-bellied trogon, (Trogon rufus) is a near passerine bird in the trogon family, Trogonidae. Although it is also called "yellow-bellied trogon" it is not the only trogon with a yellow belly. It breeds in lowlands from Honduras south to western Ecuador and northern Argentina.

Contents

Taxonomy

The black-throated trogon was formally described in 1788 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae . He placed it with the other trogons in the genus Trogon and coined the binomial name Trogon rufus. [2] Gmelin based his description on the "Couroucou à queue rousse de Cayenne" that had been described and illustrated in 1779 by the French polymath Comte de Buffon in his Histoire Naturelle des Oiseaux . Buffon's specimen was a female with brown upperparts that had been collected in Cayenne. [3] [4] The specific epithet rufus is Latin for "red" or "ruddy". [5]

Six subspecies are recognised: [6]

Description

Like most trogons, it has distinctive male and female plumages and with soft colourful feathers. This relatively small species is 23–24 cm long and weighs 54-57 g, with a white undertail with black barring, a yellow bill and wing coverts which are vermiculated with black and white, but appear grey at any distance. The male black-throated trogon has a green head, upper breast and back, black face and throat, and golden yellow belly. The female has a brown head, upper breast and back, rufous upper tail and yellow belly. Immatures resemble the adults but are duller, and young males have a brown throat, breast and wing coverts.

The call is a churring krrrrrr, and the song is a typical trogon series of a few clear whistles, cuh cuh cuh cuh.

Distribution and habitat

It is a resident of the lower levels of damp tropical forests, and prefers the deep shade of the understory. Their broad bills and weak legs reflect their diet and arboreal habits. Although their flight is fast, they are reluctant to fly any distance. They typically perch upright and motionless.

Behavior

Black-throated trogons feed mainly on arthropods as well as some fruit, often taken in flight; they are one of the most insectivorous trogon species of their range. They opportunistically catch arthropods that have been startled by other predators, such as coatis ( Nasua spp.). [7]

The black-throated trogon nests 1–6 m (3.3–19.7 ft) high in an unlined shallow cavity, with a typical clutch of two white eggs.

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References

  1. BirdLife International (2016). "Trogon rufus". IUCN Red List of Threatened Species . 2016: e.T22682810A92961740. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22682810A92961740.en . Retrieved 12 November 2021.
  2. Gmelin, Johann Friedrich (1788). Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1, Part 1 (13th ed.). Lipsiae [Leipzig]: Georg. Emanuel. Beer. p. 404.
  3. Buffon, Georges-Louis Leclerc de (1779). Histoire Naturelle des Oiseaux (in French). Vol. 6. Paris: De l'Imprimerie Royale. p. 293.
  4. Buffon, Georges-Louis Leclerc de; Martinet, François-Nicolas; Daubenton, Edme-Louis; Daubenton, Louis-Jean-Marie (1765–1783). "Couroucou, à queue rousse de Cayenne". Planches Enluminées D'Histoire Naturelle. Vol. 8. Paris: De L'Imprimerie Royale. Plate 736.
  5. Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 343. ISBN   978-1-4081-2501-4.
  6. Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (August 2022). "Mousebirds, Cuckoo Roller, trogons, hoopoes, hornbills". IOC World Bird List Version 12.2. International Ornithologists' Union. Retrieved 31 December 2022.
  7. de Mello Beisiegel (2007), Pizo (2007)

Sources