Gartered Trogon
Trogon caligatus
Relatively small and compact yellow-bellied trogon of tropical lowland forest, mainly in humid areas. Perches at mid to upper levels, often high in canopy. Male has yellow eyering, female has broken white eyering; both sexes have narrow black-and-white barring on underside of tail. Female Gartered has white barring on its closed wings which female Black-headed Trogon lacks. Digs its nest in large arboreal wasp nests. Used to be known as Violaceous Trogon.
识别特征
Most trogons have distinctive male and female plumages, with soft, often colorful, feathers. The gartered trogon is 23 to 25 cm (9.1 to 9.8 in) long and weighs 38 to 57 g (1.3 to 2.0 oz). The nominate male's head, neck, and upper breast are a violet-blue. The face and throat are black with a pale yellow ring around the eye. A narrow white band separates the upper breast from the bright yellow lower breast and belly. The upperparts are metallic green. The tail's upperside is violet-blue with black feather tips; the underside has fine black and white bars and broad white feather tips. The wings are mostly black with some whitish inclusions. The female's head and face, upper breast, and upperparts are gray; the eyering is not complete, the belly is a duller yellow than the male's, and the underside of the tail has a different pattern of black and white.<p>T. c. sallaei has a blackish head and upper breast and a blue nape and lower breast. Its upperparts are a yellower green than the nominate's and the upper side of the tail is green. T. c. concinnus is similar to sallaei but its upperparts and tail are bluer.
分类信息
Until the early 2000s, what are now the gartered trogon and the Amazonian trogon (T. ramonianus) were considered subspecies of the violaceous trogon (T. violaceous). The International Ornithological Committee (IOC), the Clements taxonomy, and the South American Classification Committee of the American Ornithological Society (AOS-SACC) have implemented the split making them separate species and renaming T. violaceous the Guianan trogon. However, BirdLife International's Handbook of the Birds of the World (HBW) retains them as subspecies. The classification schemes that treat the gartered trogon as a species assign three subspecies, the nominate T. c. caligatus, T. c. sallaei, and T. c. concinnus.
- 学名
- Trogon caligatus
- 命名信息
- Gould, 1838
- 目
- Trogoniformes
- 科
- Trogonidae
- 属
- Trogon
分布与栖息地
T. c. sallaei is the northernmost subspecies of gartered trogon. It is found on the Caribbean slope of central Mexico and from the Caribbean and Pacific slopes of southern Mexico through Belize, Guatemala, and El Salvador into northern Honduras and possibly into Nicaragua. T. c. concinnus is found from Costa Rica through most of Panama into western Colombia, and separately from western Ecuador into northwestern Peru. The nominate T. c. caligatus is found from the Caribbean slope of Panama's Darién Province through northern Colombia into western Venezuela. It is a year round resident in Mexico but its movements elsewhere, if any, are unknown.<p>The gartered trogon is generally a bird of semi-open landscapes such as forest edges, clearings, gallery forest, secondary forest, and shaded coffee and cacao plantations. In Mexico it is also found in denser evergreen forest and rainforest. In elevation it ranges as high as 1,400 m (4,600 ft) in Central America but is generally more common in lowlands.
行为
The gartered trogon usually feeds by hovering to pick fruit and invertebrates from vegetation. It diet includes a larger amount of fruit than most other trogons but also many types of insects and other invertebrates. It sometimes joins mixed-species foraging flocks.<p>The gartered trogon's breeding season spans from March to June in Mexico, May to July in El Salvador, and February to June in Costa Rica. It nests in an wasp, ant, or termite arboreal nest or a hole in a rotten tree, with a typical clutch of two or three eggs.<p>The gartered trogon's song is "a long series of rapid hollow downslurred notes, kyu-kyu-kyu-kyu-kyu-kyu". It also makes a "rolling chattering" call.
照片
分布
鸟叫声
其他鸟类
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Scepomycter winifredae
An unusual warbler with a restricted range in the central Tanzanian mountains. Mostly gray, darker on the back, with a rich rufous head and breast. Females are duller. A shy and skulking bird of the understory of montane forest. Usually found in pairs. Somewhat similar to African Tailorbird and Chapin’s Apalis, but chunkier, with more extensive rufous on the head and breast. Normally detected by voice: the male sings a well-spaced series of long, pure whistles, sometimes accompanied in a duet by the female, who gives lower whistles in simple patterns.
Gray-breasted Partridge
Arborophila orientalis
Unique partridge of Java’s eastern highlands, where it inhabits primary forest from 500 to 2200 meters. Dark gray overall with a distinctive bright white face, which sets it apart from all other gamebirds in its limited range. Forages on the forest floor, often in small groups; typically quite shy, but can become accommodating at established feeding stations. Song is a slowly rising series of “whew” notes that eventually become a rapid, feverish, seemingly endless chant. Pairs often duet; one member will give the aforementioned song, while the other gives a lower, slower “woo-hoo.”
Paradise Jacamar
Galbula dea
Unmistakable. Fairly common and widespread across much of Amazonia. Very long pointed tail and long straight bill lend to its distinctive silhouette. Overall dark glossy-black with a white throat. Wings are iridescent blue-green in good light. Sexes similar. Unlike most other jacamars, tends to perch conspicuously on open branches in the canopy, often in pairs. Typically found around clearings or at the edge of mature lowland forest, even along roadsides.
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