Amazonian black-throated trogon | |
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Adult male in Manacapuru, Amazonas, Brazil | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Trogoniformes |
Family: | Trogonidae |
Genus: | Trogon |
Species: | T. rufus |
Binomial name | |
Trogon rufus Gmelin, JF, 1788 | |
The Amazonian black-throated trogon (Trogon rufus) is a 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 of Amazonia.
The Amazonian 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]
Three subspecies are recognised: [6]
Other three species were previously considered conspecific with the Amazonian black-throated trogon: [6]
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.
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.
Amazonian 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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