Mountain Avocetbill
Opisthoprora euryptera
Scarce Andean hummingbird with a short, awl-like bill that is upturned at the tip. Mostly green, and streaked with white on the underparts; also note the buff tinge to belly and white spot behind the eye. Similar to female Purple-backed Thornbill, but can be identified by its distinctive bill shape. Inhabits high elevation cloud forest, where it is usually encountered feeding on flowers at forest edge and in clearings.
识别特征
The mountain avocetbill is 10 to 11 cm (3.9 to 4.3 in) long; the few known weights are between 5.8 and 6.6 g (0.20 and 0.23 oz). It has a short bill that turns up slightly at the tip. Adults have bronzy green upperparts with a prominent white spot behind the eye. The tail is notched; the central pair of feathers are bronzy green and the outer ones dark blue with thin whitish tips. The throat and breast are white and the flanks and belly rufous; all have dark green streaks.
分类信息
The mountain avocetbill is the only member of its genus and has no subspecies. It is closely related to the hillstars (genus Oreotrochilus) and trainbearers (genus Lesbia). It was originally described in genus Trochilus which at that time included many species that have been reclassified.
- 学名
- Opisthoprora euryptera
- 命名信息
- (Loddiges, 1832)
- 目
- Unknown (not a recognized bird species)
- 科
- Unknown
- 属
- Opisthoprora
分布与栖息地
The mountain avocetbill is patchily distributed in Colombia's Central Andes, on the east slope of the Andes in Ecuador, and at a few locations on the east slope in northern Peru. It inhabits the interior, edges, and clearings of elfin forest and humid montane forest and is often seen in roadside shrubbery. In elevation it ranges between 2,600 and 3,600 m (8,500 and 11,800 ft) in Colombia, mostly between 2,400 and 3,200 m (7,900 and 10,500 ft) but as low as 1,700 m (5,600 ft) in Ecuador, and between 2,700 and 3,200 m (8,900 and 10,500 ft) in Peru.
- 迁徙
- Resident species
行为
The mountain avocetbill is sedentary throughout its range.<p>The mountain avocetbill forages up to 3 m (10 ft) above the ground. It feeds on nectar both while hovering and by clinging to flowers; it sometimes "robs" nectar by piercing the base of a flower. Its diet is not known in detail, but it has been recorded feeding at flowers of the families Ericaceae, Onagraceae, Rubiaceae, Lobeliaceae, and Campanulaceae. It also feeds on small insects caught by sallies from a perch.<p>The mountain avocetbill's breeding phenology has not been described. It is believed to be polygynous like most other hummingbirds.<p>The mountain avocetbil's vocalizations are not well known but do include "a series of descending thin whistles, reminiscent of a piculet: wsee wsee wsee wsee."
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Bay-breasted Warbler
Setophaga castanea
Breeding males are distinctive with dark reddish-brown cap and sides, along with buffy nape. Two bold white wingbars. Females and fall birds are duller; most show at least some chestnut coloring on sides. Dullest birds are similar to Blackpoll and Pine Warblers; look for streaks on back, well-defined wingbars, and cleaner greenish-yellow head and neck. Prefers conifers during migration, but can be found in any woodland. Breeds in the boreal forest. In most of U.S. , only seen during migration. Winters in Central and South America. Listen carefully for extremely high-pitched, squeaky-wheel song, similar to a fast Black-and-white Warbler.
Timor Cicadabird
Edolisoma timoriense
Poorly known cuckooshrike with a restricted range on the large island of Timor, as well as several smaller islands in the region. The male is mostly uniform gray, and quite plain. Females are much bolder: gray on the upperparts, with a black wing, edged in white, and pale underparts with fine barring. Habitat requirements are poorly understood, but certainly found in wooded environments at lower elevations. Vocalizations also poorly known.
Red-headed Fody
Foudia eminentissima
A sparrow-like weaver. Red-hooded breeding males are distinctive, but females and non-breeding males are drab. A Comoros endemic that is found in and adjacent to humid forest on the western three islands, and in drier, scrubby lowland habitats on Mayotte. Plumage varies across the different islands. The most distinctive birds, on Grand Comoro, have much less red on the breast than other populations. Can be very similar to Red Fody. Breeding male Red-headed Fody lacks red on the back and belly, though molting male Red Fody can match this pattern. Females and non-breeding males very similar to Red Fody, but Red-headed Fody is larger, darker, and more greenish, with a longer, slightly curved bill. Also similar to female House Sparrow, but distinguished by the more olive-green coloration and the longer bill. Calls are high, silvery notes, given in long series as a song.
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