Amazonian Black-throated Trogon
Trogon rufus
Yellow-bellied trogon with pale blue or yellow eyering and yellowish bill. Male has shimmering green-blue upperparts and chest; female is brown. Underside of tail barred black and white with large white tips. Found in forested areas, usually sitting still at low to middle heights (often lower than other trogons in range). Male from Amazonian Trogon by head and chest color (greener, not deep blue), yellower bill, and voice. Brown color of female is distinctive, unlike slaty-gray of female Amazonian. Listen for song: a slow, evenly-spaced series of 3-6 slurred whistled notes.
识别特征
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.<p>The call is a churring krrrrrr, and the song is a typical trogon series of a few clear whistles, cuh cuh cuh cuh.
分类信息
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. 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. The specific epithet rufus is Latin for "red" or "ruddy".<p>Three subspecies are recognised:<p>Other three species were previously considered conspecific with the Amazonian black-throated trogon:
- 学名
- Trogon rufus
- 命名信息
- Gmelin, JF, 1788
- 目
- Trogoniformes
- 科
- Trogonidae
- 属
- Trogon
分布与栖息地
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.
- 迁徙
- Resident species
行为
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.).<p>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.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
White-throated Magpie-Jay
Cyanocorax formosus
Spectacular, large, and often conspicuous jay of tropical lowland forests, plantations, and semiopen areas with hedges and tall trees; prefers drier areas, but locally in rather humid situations. Usually in small groups and can be surprisingly inconspicuous if feeding quietly. At other times, unavoidably noisy and impossible to overlook. No similar species in range. Note crest, white face and throat, and long white-edged tail.
Montane Foliage-gleaner
Anabacerthia striaticollis
Fairly small brownish bird of Andean foothills and subtropical zone from Venezuela to Bolivia. Rather plain overall with obvious pale eyering and eyebrow, giving it a spectacled appearance. Pale throat is slightly scaled; breast streaking is faint or absent. A regular member of mixed-species flocks in cloud forest, usually staying at low or middle levels. Typical foliage-gleaner behavior, hopping along limbs and investigating clumps of moss and dead leaves.
Puerto Rican Vireo
Vireo latimeri
A small, noisy inhabitant of woodlands including mangrove swamps and shade coffee plantations; often feeds low, near ground. This relatively plain species has a grayish head and chest that contrasts with a yellow-washed belly. The White-eyed Vireo looks passingly similar, but has bold white wingbars and a yellow spot in front of the eyes. The Caribbean Elaenia has whitish wingbars and is usually found perched upright or flycatching. Puerto Rican Vireos sing “chuwee-chuweech-you,” “Chewee-wit-weee,” or variations therein. Its calls include a plaintive “zhe, zhe, zhe…” and an emphatic “djuh.”
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