Silvery-throated Spinetail
Synallaxis subpudica
A typical-looking spinetail with a very restricted range in central Colombia. Gray-brown overall with a rusty or rufous crown and wings, and a long, spiky grayish tail. Throat looks dark, not silvery. Fairly common in forests, edges, and thickets from around 2,000 to 3,200 m. Skulking and fairly difficult to see. Compare with Azara’s Spinetail, which has a rufous tail. Listen for long descending chatters and chip calls.
识别特征
The silvery-throated spinetail is 17 to 19 cm (6.7 to 7.5 in) long. The sexes have the same plumage. Adults have a thin light cinnamon supercilium on an otherwise grayish brown face. Their forecrown is grayish brown, their hindcrown and nape rufous-chestnut, and their back, rump, and uppertail coverts brown. Their wing coverts and base of their flight feathers are chestnut and the rest of the flight feathers are brown. Their tail is a slightly darker brown than the back; it is very long and the feathers lack barbs at their tips, giving a spiny appearance. Their throat is gray with faint darker mottling and a blackish center. Their underparts are dull grayish brown with an olive tinge; it is lighter on the belly. Their iris is dark reddish brown, their maxilla blackish gray, their mandible gray, and their legs and feet gray. Juveniles have a gray crown.
分类信息
The silvery-throated spinetail is monotypic.
- 学名
- Synallaxis subpudica
- 命名信息
- Sclater, PL, 1874
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Synallaxis
分布与栖息地
The silvery-throated spinetail is found in Colombia's Eastern Andes from northern Boyacá Department north into Santander Department. It primarily inhabits the edges of montane evergreen forest, both primary and secondary, and second-growth scrublands. It also occurs in the undergrowth at the edge of cloudforest and in forest clearings that are regrowing. In elevation it mostly ranges between 2,100 and 3,200 m (6,900 and 10,500 ft) but is found as low as 1,300 m (4,300 ft).
- 迁徙
- Resident species
行为
The silvery-throated spinetail is a year-round resident throughout its range.<p>The silvery-throated spinetail's diet has not been studied; it is assumed to feed mostly on arthropods. It usually forages in pairs, gleaning prey from foliage and small branches, typically 1 to 2 m (3 to 7 ft) above the ground but sometimes higher.<p>The silvery-throated spinetail's nest is a bulky mass of thorny sticks with a horizontal entrance tube; the egg chamber is lined with moss. It is typically placed in a bush about 2 m (7 ft) above the ground. Nothing else is known about its breeding biology.<p>The silvery-throated spinetail's song is "a fast, accelerating, descending and fading series of chattering notes...'chí-chi-chi-che-che-che-chu-chu-chu' " and is often sung in duet. Its call is "a sharp 'kik' " and its alarm call "a low trill".
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Wallace's Owlet-nightjar
Aegotheles wallacii
A medium-sized owlet-nightjar of foothill forests. Dark brown wings and tail with barring and some additional white flecks on the wings. Dark head, whitish belly and buffy base to the chest covered with irregular, dark arrowhead marks. Potentially co-occurs with Mountain, Vogelkop and Barred Owlet-Nightjars, but Wallace’s lacks the distinct barring of Barred and Vogelkop, and the pale collar of all 3 species. Voice a simple, whistled “pweet pyuut” with the first note falling and second lower. Sometimes just one of these notes given.
Gray Cuckooshrike
Ceblepyris caesius
Large, chunky, all-gray cuckooshrike. There is a pale ring around the dark eye, giving the face a gentle appearance. Males are darker gray than females. Found in forest; away from South Africa, exclusively in montane forest. Quiet and unobtrusive bird that is easily missed as it moves slowly through the forest midstory. Call is a quiet, high-pitched, descending “seeeeuup.” Similar to White-breasted Cuckooshrike, but has much darker underparts and is found in forest rather than woodland.
Blue Paradise-Flycatcher
Terpsiphone cyanescens
A medium-sized, long-tailed bird of lowland forest understory on Palawan and neighboring islands. Has a blue bill, eye-ring, chest, and head with a slight crest at the back. Back, wings, and tail are blue in the male and rufous in the female. Female is distinctive. Male is similar to Black-naped Monarch, but larger, and lacks the black mark on the back of the head. Song consists of a rapidly pulsating series of fairly high-pitched nasal notes that increase in volume.
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