Purple-collared Woodstar
Myrtis fanny
Small hummingbird found in dry, scrubby regions of the Andes; also in coastal deserts in Peru. Male has a glittering blue throat bordered below by purple. Female lacks this and has a rusty wash on white underparts; the extent of this rusty color varies between individuals. Also note slightly curved bill. Male performs swooping U-shaped display flights, alternately giving high-pitched twitters and low-pitched mechanical sounds while doing so. Not known to visit feeders.
识别特征
The purple-collared woodstar is 7.5 to 8 cm (3.0 to 3.1 in) long and weighs 2.3 to 2.5 g (0.081 to 0.088 oz). Both sexes have a short, decurved, black bill. Their upperparts are bronze-green. Males have an iridescent aquamarine gorget with a shiny violet band below it. The rest of the underparts are dirty white. The long forked tail is dusky brown glossed with light green. The female's underparts are buff, with a bit of white on the throat and belly. Its tail is short and rounded; the central pair of feathers are blue-green, the next pair blue-green with black tips, and the rest black with white tips. The two subspecies are alike but for M. f. megalura's longer tail.
分类信息
The exact relationships within the "bee hummingbirds" are uncertain, but the purple-collared woodstar appears to be closely related to the amethyst woodstar (Calliphlox amethystina). It is the only member of its genus and has two subspecies, the nominate M. f. fanny and M. f. megalura.
- 学名
- Myrtis fanny
- 命名信息
- (Lesson, RP, 1838)
- 目
- Caprimulgiformes
- 科
- Trochilidae
- 属
- Myrtis
分布与栖息地
The nominate subspecies of purple-collared woodstar is found in western and southern Ecuador and western Peru all the way south to Arequipa Department. M. f. megalura is found in northern Peru from Cajamarca south to Huánuco. The species inhabits open landscapes such as dry coastal scrub, open woodlands, and gardens. In elevation it ranges from sea level to 3,000 m (9,800 ft), though in Ecuador it is mostly found between 1,000 and 2,000 m (3,300 and 6,600 ft).
- 迁徙
- Resident species
行为
The movements of the purple-collared woodstar, if any, are not known, but elevational movements are thought to be probable.<p>The purple-collared woodstar feeds on nectar by trap-lining, visiting a circuit of flowering plants. It also feeds on small insects captured on the wing.<p>The purple-collared woodstar breeds between March and June in Ecuador and June to October in Peru. Males make a semicircular courting display flight. Females build a tiny cup nest of plant fibers and spiderweb in a fork of a thin branch. It is typically placed 2 to 4 m (7 to 10 ft) above the ground, but sometimes higher. The female incubates the clutch of two eggs for 15 to 16 days; fledging occurs 19 to 22 days after hatch.<p>The male purple-collared woodstar makes "a series of twittering 'ti-ti-ti-trl' phrases" at the top of its courtship flight, and at the bottom (mechanically) makes "a remarkable, nasal-sounding 'anh-anh-anh-anh-anh'". In a chase it makes "a fast, high-pitched, descending twittering 'ti-ti-ti-ti'", and another call is "a fast dry 'chi-chi-chi'".
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
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Small, chickenlike inhabitant of marshes, vegetated river edges, ditches, wet croplands, sometimes dry fields. Brown above, with orange from lower cheek to lower breast. Similar to Band-bellied Crake, but more brightly colored and lacks white wing markings. Retiring and difficult to see but not uncommon in some locations. Most often detected by song, an accelerating series of beeping notes, given from cover in early morning and evening.
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