Blue-capped Puffleg
Eriocnemis glaucopoides
Generally rare (but locally fairly common in a few spots) hummingbird of humid forests just below treeline on the eastern slope of the Andes from NW Argentina to La Paz, Bolivia. Often feeds near treefalls and roadcuts, especially on bellflowers (Lobelioideae). Seemingly more common in southern half of range. Male’s white leg puffs and blue crown are distinctive. Female’s orange underparts combined with metallic blue undertail coverts also unique.
识别特征
The blue-capped puffleg is 9 to 13 cm (3.5 to 5.1 in) long and weighs 4.0 to 4.5 g (0.14 to 0.16 oz). It has a straight black bill. The male has dark green upperparts with a dark glittering blue forehead. Its underparts are mostly golden green, with a bluish green lower breast and shining purplish blue undertail coverts. Its leg puffs are white. The tail is long, forked, and blue-black. The female's upperparts are also dark green but without the blue forehead. Its throat, breast, and belly are bright cinnamon-buff and the undertail coverts have pale buff fringes. The female's tail is less deeply forked than the male's.
分类信息
The blue-capped puffleg is monotypic.
- 学名
- Eriocnemis glaucopoides
- 命名信息
- (d'Orbigny & Lafresnaye, 1838)
- 目
- Apodiformes
- 科
- Trochilidae
- 属
- Eriocnemis
分布与栖息地
The blue-capped puffleg is the southernmost representative of its genus. It is found from Bolivia's La Paz and Cochabamba departments south into northwestern Argentina's Salta and Tucumán provinces. It generally inhabits humid slopes of grass and dense shrubs and the edges of cloudforest. In Argentina it also occurs in somewhat dryer landscapes. In elevation it ranges from 1,500 to 3,400 m (4,900 to 11,200 ft) but is most common between 2,000 to 2,500 m (6,600 to 8,200 ft).
- 迁徙
- Resident species
行为
The blue-capped puffleg is generally sedentary. However, it is known to make seasonal elevational movements in Argentina and suspected to do so in Bolivia.<p>Almost nothing is known about the blue-capped puffleg's diet or feeding behavior. It has been observed taking nectar from low-growing plants.<p>The blue-capped puffleg has been documented breeding in November in Bolivia but little else is known about the species' breeding phenology. The female incubates the clutch of two eggs but the incubation period and time to fledging are not known.<p>The blue-capped puffleg's vocalizations are not well known. As of early 2022, Xeno-canto and Cornell University's Macaulay Library each had a single recording. The only description of the vocalization is "a high-pitched 'zee-zee'".
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Moluccan Whistler
Pachycephala macrorhyncha
A chunky, heavy-billed songird. Highly variable, with possibly multiple species involved. Male is distinctive, with a black hood, a white throat (bright yellow on Tanimbar), a bright yellow underside, and dull green upperparts with a golden collar. Females are dull, with brown or gray upperparts, a pale throat, and pale buff to yellow underparts. Female differs from Fawn-breasted Whistler in having a larger body and a longer, heavier bill; from female Wallacean Whistler by absence of throat streaking; and from Drab Whistler by yellower underside and browner upperside. Vocalizations variable, with loud whistles sometimes ending in whip-cracking notes, such as “wee-wee-wee-WHIP-CHOO.”
Black-headed Tanager
Stilpnia cyanoptera
Small bird of foothill forests. Males have a pale buffy body with black head, wings, and tail; females are much more drab, with a grayish-green head, pale bluish-green back, and yellowish underparts. In good light, both sexes show blue in flight feathers. Found in foothill forests and edge habitats, dry valleys, and in humid forest around the bases of the tepuis. Usually observed at fruiting trees, often in pairs or small family groups, from lower levels into canopy. Calls are indistinct chips and twitters. Plumage pattern of male is distinctive; females are more confusing but are seldom seen without males, facilitating identification; note contrasting gray head and (at close range) blue in wings.
Russet-crowned Quail-Dove
Zentrygon goldmani
A plump ground-dwelling dove with limited range in eastern Panama and barely into Colombia. Brownish above with a grayer breast, whitish face, and reddish legs. Namesake rufous crown is distinctive. Most common in foothills from around 750–1,600 m, but sometimes lower. Like other quail-doves walks stealthily on the forest floor, singly or in pairs. Perhaps most easily seen beside quiet trails early and late in the day. Heard more often than seen.
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