Rufous-gaped Hillstar
Urochroa bougueri
Large hummingbird with limited range on west slope of Andes from central Colombia to northwest Ecuador. Distinctive in range. Overall bronzy-greenish with blue throat. Very long, straight bill with rufous patch on face. Look for bold white flashes in tail, especially visible in flight. Overall dark coloration and white in tail could be confused with Velvet-purple Coronet, but note larger size, longer bill, and blue restricted to throat. Uncommon; occasionally visits feeders but equally likely to be found within forest, especially around streams and waterfalls. Occurs from around 1,100 to 2,000 m.
识别特征
The rufous-gaped hillstar is 13 to 14 cm (5.1 to 5.5 in) long including its approximately 3 cm (1.2 in) bill. It weighs 8.5 to 12.5 g (0.30 to 0.44 oz). The sexes are alike. They have a long, straight, black bill and coppery green upperparts. The English name comes from the rufous-cinnamon malar streak on the face. The throat and breast are iridescent blue and the belly dull gray. The central and outermost tail feathers are black and the rest white with dusky gray edges. Juveniles are similar to adults with the addition of buffy fringes on the head feathers.<p>What is thought to be the rufous-gaped hillstar's song is "a continuous series of single 'swit' or 'tsit' notes". It also makes "a liquid 'twit', repeated in long sequences when alarmed."
分类信息
The rufous-gaped hillstar was formally described in 1851 by the French ornithologist Jules Bourcier based on a specimen that he had collected in Ecuador. He placed it in the genus Trochilus and coined the binomial name Trochilus bougueri. The species is now placed in the genus Urochroa that was introduced in 1856 by the English ornithologist John Gould. The genus name combines the Ancient Greek oura meaning "tail" with khroa meaning "colour" or "complexion". The specific epithet bougueri was chosen to honour the French mathematician Pierre Bouguer who had visited Peru in 1736–1742.<p>The rufous-gaped hillstar and what is now the green-backed hillstar (Urochroa leucura) were once treated as a single species, the "white-tailed hillstar". They are the only two members of their genus. Although they share the name "hillstar" with the members of genus Oreotrochilus, they are quite different and not closely related. The rufous-gaped hillstar is monotypic.
- 学名
- Urochroa bougueri
- 命名信息
- (Bourcier, 1851)
- 目
- Apodiformes
- 科
- Trochilidae
- 属
- Urochroa
分布与栖息地
The rufous-gaped hillstar is found on the Pacific slope of the Andes from Colombia's Chocó Department south into Ecuador as far as Pichincha Province. It inhabits the interior and edges of mature montane forest and secondary forest, and also shrubby slopes, and is often found near streams. In elevation it generally ranges between 1,600 and 2,800 m (5,200 and 9,200 ft). It is most numerous at about 1,800 m (5,900 ft) and is occasionally found well below its usual minimum elevation. Though the rufous-gaped hillstar is generally sedentary, it makes some seasonal elevational movements, at least in Colombia.
- 迁徙
- Resident species
行为
The rufous-gaped hillstar usually forages in the lower and middle strata of the forest but occasionally in the canopy. Males defend feeding territories at stands of flowering vegetation. It takes nectar mostly from plants of genera Inga, Bomarea, Psammisia, and Cavendishia. In addition to feeding on nectar it captures small insects by hawking from a perch.<p>The rufous-gaped hillstar's breeding season in Colombia spans from December to March; it has not been documented in Ecuador. It builds a cup nest of moss and lichen on a vertical branch, typically 8 to 12 m (26 to 39 ft) high in a tall tree. The female incubates the clutch of two eggs for 16 to 18 days; fledging occurs 23 to 25 days after hatch.
保护状况
- 种群趋势
- unknown
照片
分布
鸟叫声
其他鸟类
Brown Falcon
Falco berigora
Large-headed falcon with variable brownish plumage ranging from dark chocolate brown, to reddish, to tan. All have a dark moustache mark, long unfeathered lower legs, and a finely barred tail. Take care to identify dark birds from Black Falcon, which has feathered legs, and a more angular heavy-shouldered appearance. When gliding holds its wingtips up. Common resident in rural areas, often perches on power lines, fence posts. Populations tend to move when food and water is scarce.
Mountain Trogon
Trogon mexicanus
Fairly large trogon of pine and pine-oak forests in highlands; usually at upper levels in trees and often rather shy. Male is striking, with big, bold white squares on underside of tail. Female has broken white eyering on brown head and coarse black-and-white pattern under the tail. Elegant Trogon overlaps in range and can be told from Mountain by the coppery color on the top of the tail (male) or by the white stripe behind the eye (female). Also note the finely patterned tail on both male and female Elegant Trogons. The similar but smaller Collared Trogon is found mainly at lower elevation and has much finer barring on the underside of the tail.
Andean Condor
Vultur gryphus
Huge, wide-ranging vulture of the Andes, but also ranges into lowlands in southern Chile and Tierra del Fuego. Locally fairly common in Chile and adjacent Argentina, less numerous northward. Mainly seen as singles or pairs, sailing high over ridges, but tens can gather at roosts and to scavenge at carcasses. Size alone is diagnostic, but can be difficult to judge at a distance: note very long “fingers” at wingtips and white collar of adult. Adult also has diagnostic big white panels on upperwing, visible as birds bank. Immatures dark overall, becoming like adult in about 5 years.
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