Little Woodstar
Chaetocercus bombus
Tiny, bee-like hummingbird. Both sexes have white spots on sides of rump. Male has glittering magenta throat bordered by a pale buffy breast, neck sides, and stripe behind eye, and has a spiky tail. Female is pale rusty below, though whiter on the throat, neck, and eye stripe. Female is smaller than female White-bellied Woodstar, and is more extensively rusty on the belly. Inhabits both humid and deciduous forest, mainly in the Andes but also in coastal areas of Ecuador. Occasionally visits feeders.
识别特征
The little woodstar is 6 to 7 cm (2.4 to 2.8 in) long. Both sexes have a straightish black bill. The male is mostly dark bronzy blue-green. It has a buffy white line behind the eye that curves down to meet the buffy chest. Its gorget is rosy. The tail is forked and its outermost feathers are shafts with no vanes. The female is bronzy green above and mostly cinnamon below with tawny flanks and vent. The tail is rounded and tawny with a black bar near the end.
分类信息
The little woodstar and several other species in genus Chaetocercus were formerly placed in genus Acestrura but have been in their current position since the late 20th century. The species is monotypic.
- 学名
- Chaetocercus bombus
- 命名信息
- Gould, 1871
- 目
- Apodiformes
- 科
- Trochilidae
- 属
- Chaetocercus
分布与栖息地
The little woodstar is found from extreme southwestern Colombia through western Ecuador into northern Peru and discontinuously in eastern Ecuador and north central Peru. It inhabits the transition zone between semi-humid and humid deciduous forest. In elevation it ranges from sea level to 2,300 m (7,500 ft) in western Ecuador and between 900 and 3,000 m (3,000 and 9,800 ft) in eastern Ecuador and Peru.
- 迁徙
- Resident species
行为
The little woodstar is presumed to be mostly sedentary but seasonal elevational movements are likely.<p>The little woodstar forages from near the ground to the forest's middle level, visiting a wide variety of flowering plants and trees. Little is known about its foraging strategy but it is assumed to behave like its close relative the white-bellied woodstar (C. muslant). That species does not defend feeding territories, and because of its small size and slow bumblebee-like flight is able to feed in the territories of other hummingbirds.<p>Nothing is known about the little woodstar's breeding phenology.<p>What is thought to be the little woodstar's song is "a mixture of chips, twitters and buzzy notes, 'tsitsitsi..tzzeee-tzzeee..chichip'." It makes "a single dry 'chip' or doubled 'chichip'" while feeding and hovering and "a squeaky 'kswee-kswee-ti-ti-ti'" while interacting with other hummingbirds.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
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The smallest of the crested penguins. Note the thin yellow eyebrows that, once past the eyes, flare out toward the rear of the head. The species consists of two subspecies, the Eastern and Western Rockhopper Penguins. The Western Rockhopper Penguin breeds on offshore islands off southern Chile and Argentina and on the Falkland Islands, while the Eastern Rockhopper Penguin breeds on various subantarctic islands around New Zealand and the southern Indian Ocean. The Eastern has even eyebrows with pink skin at the base of the bill; the Western has black skin at the base of the bill, with an uneven eyebrow shape. Vagrants occasionally reach the Snares Islands. Distinguished from Snares Penguin by thinner eyebrow and smaller bill, and from Moseley’s Rockhopper Penguin by shorter, less flowing crest.
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Small, with a long, often fanned brown tail tipped with white and a cream-colored undertail. Mostly brown with a slightly darker head, a limited white throat, and two buffy wingbars. Prefers undisturbed primary forest up to 700 meters of elevation. Similar to Rufous Fantail, but not as red, and lacks the white belly and black chest band. Separated from Gray Fantail by being much darker below, with broader white tail tips and no black chest band. Song is an upward-spiraling trill. Common call is a soft “chit.”
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