Silver-rumped Spinetail

Rhaphidura leucopygialis

Small, bullet-shaped swift with rather broad-based wings. Dark (glossy blue in optimal light) with extensive silvery rump patch. Named for thin protrusions from the tail, only sometimes visible at close range. Forages aerially over forest and edge habitat, often near water, sometimes in large numbers and among other swift species. Gives a rapid-fire, chattering trill.

识别特征

The silver-rumped spinetail or silver-rumped needletail (Rhaphidura leucopygialis, sometimes spelled Raphidura leucopygialis) is a species of swift in the family Apodidae. It is found in Brunei, Indonesia, Malaysia, Myanmar, Singapore, and Thailand. Its natural habitat is subtropical or tropical moist lowland forests. Research on the silver- Rumped spine tail has utilized facultative heterothermy, or even torpor, as a physiological mechanism to reduce its metabolic rate and conserve energy in its tropical environment.

分类信息

Genus: Rhaphidura; Family: Apodidae; Order: Apodiformes.

学名
Rhaphidura leucopygialis
命名信息
(Blyth, 1849)
Apodiformes
Apodidae
Rhaphidura

分布与栖息地

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

Chinese Leaf Warbler

Chinese Leaf Warbler

Phylloscopus yunnanensis

Small plump leaf warbler. A “Pallas’s-type” leaf warbler: stout, with a pale rump, crown stripe, and prominent brow stripes. Olive-yellow above with a faint gray wash on the nape. Chinese is distinguished from Pallas’s by its paler, more faded-looking brow and crown stripes, less yellow suffusion all over the body, less compact appearance, and less obvious or absent upper wingbar. Extremely similar Gansu Leaf Warbler and Lemon-rumped Warbler can be difficult to separate; note Chinese’s slightly more elongated and less rounded appearance, a lack of a distinct hook under the end of the brow stripe, less contrasting and more yellowish head patterning, and paler yellowish secondaries. Forages actively, often hovering and hopping about at mid-level. Breeds in montane broadleaved deciduous or mixed forest; moves to lower elevations in winter. On average, found at lower altitudes than Lemon-rumped and Gansu. Lengthy song is unique and bizarre, with a twanging, grating quality: “btrichi-btrichi-btrichi.” Call is an explosive “wip!”, often repeated in medium-length series on the breeding grounds.

Green-backed Woodpecker

Green-backed Woodpecker

Campethera maculosa

Small woodpecker with a green back and a finely speckled face without strong markings. The crown is entirely red in males and red-and-black in females. There is striking geographical variation. In most of East Africa, the underparts are spotted, while in the western two-thirds of the range, the underparts are barred. Found in forest, edge habitat and clearings, and lush woodland. Generally uncommon and inconspicuous. The call is an arresting “ka-reek,” sometimes repeated several times. Spotted birds are separated from other woodpeckers by their lack of strong facial markings. Barred birds are distinctive within their range.

Ruby-crowned Tanager

Ruby-crowned Tanager

Tachyphonus coronatus

Medium-sized tanager found in the middle to upper levels of forest edges, light woodlands, plantations, and urban parks; sometimes visits feeding stations. Males are glossy black with a concealed red crown and a white spot on the shoulder. In flight, shows white underwings. Females have a gray-brown head and are otherwise mostly cinnamon colored, paler below than above.

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