Slender-tailed Woodstar
Microstilbon burmeisteri
Small, long-tailed hummingbird of NW Argentina and the Bolivian Andes. Prefers humid and semi-humid middle elevation forests, but generally rare and difficult to find throughout its distribution. Told from White-bellied Woodstar by Slender-tailed’s longer tail, accentuated sides to gorget, and, on females, largely orangey underparts.
识别特征
The slender-tailed woodstar is 7 to 9 cm (2.8 to 3.5 in) long including its 3 cm (1.2 in) tail. Both sexes have a short, straight, black bill, bronzy green upperparts, and a thin white stripe behind the eye. Males have a reddish purple gorget that flares to the side as "moustache" tufts. The rest of the throat is white, the underparts pale grayish with green mottling on the sides, and the undertail coverts are pale cinnamon. The very narrow forked tail is black. Females have darker cheeks than the male. They do not have the colorful gorget; their underparts are cinnamon-buff. Their central tail feathers are green and the rest cinnamon with a black band near the end.
分类信息
The slender-tailed woodstar was at one time placed in genus Chaetocercus but was restored to genus Microstilbon by the mid 20th century. The species is the only one in its genus and has no subspecies.
- 学名
- Microstilbon burmeisteri
- 命名信息
- (Sclater, PL, 1888)
- 目
- Apodiformes
- 科
- Trochilidae
- 属
- Microstilbon
分布与栖息地
The slender-tailed woodstar is found from Bolivia's Cochabamba and Santa Cruz departments south into Argentina's Jujuy, Salta, and Tucumán provinces. There is one historical record from the more northern La Paz, Bolivia area. It inhabits deciduous woodland, shrubby areas, thorn scrub, and densely vegetated ravines. In elevation it ranges between 1,100 and 2,600 m (3,600 and 8,500 ft).
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Red-browed Amazon
Amazona rhodocorytha
Large and mostly green parrot, notable for its orange-red forehead, grading to purplish-brown on the hind-crown, a reddish base of the bill, and wing patches framed by dark purplish flight feathers. A rare and threatened inhabitant of the canopy of humid, usually lowland forests.
Mistle Thrush
Turdus viscivorus
Rather large thrush, gray-brown above and whitish below with rather rounded dark spots; tail has small white corners, lacking in appreciably smaller Song Thrush. In flight, looks rather pale and grayish overall, especially when compared with dark brownish Song Thrush. Found in a variety of wooded habitats, including parks and moorland with hedges and taller trees. Often feeds on larger lawns and grassy verges, often well away from cover. Sweet and rich-sounding warbled song is similar to that of Eurasian Blackbird, and very unlike Song Thrush. Dry rattle calls are distinctive.
Satin Flycatcher
Myiagra cyanoleuca
A long-tailed, slender songbird with fine bill. Males dark bluish black above, white below, with a dark bib with concave lower edge (curves downward at edges). Crown and throat equally dark, lending male a hooded appearance. Male Leaden Flycatcher has uniformly dark head, grayish (not blackish) tail feathers, and convex bib edge. Female blue-gray above, with orange throat and breast. Inhabits varied woodlands, perches high in the canopy, often shakes the tail rapidly. Song a repeated two-note whistle; call a loud buzzing “zerp.”
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