Striated Softtail
Thripophaga macroura
Distinctive-looking rufous bird, heavily streaked with a bright cinnamon tail. Note the orange chin patch. Found in humid forest with dense vine tangles, where it forages by gleaning from the understory to the subcanopy and often accompanies mixed-species flocks. The song is two clear notes flowed by a rattle. The superficially similar but larger Pale-browed Treehunter lacks the orange chin and has a more robust bill.
识别特征
The striated softtail is 17 to 18 cm (6.7 to 7.1 in) long. The sexes have the same plumage. Adults have a buff supercilium and pale lores on a otherwise buff-streaked brown face. Their crown, back, rump, and uppertail coverts are dark reddish brown streaked with black-edged reddish-rufous to rufous-buff. Their tail is pale tawny to cinnamon-rufous. Their wings are mostly dark rufous with dusky tips on the flight feathers. Their chin and upper throat are orange-rufous to yellowish orange. The rest of their underparts are dull brown with buff streaks that fade on the belly and undertail coverts. Their iris is deep chestnut brown, their maxilla dusky horn to silvery gray, their mandible bluish gray with a dusky horn tip, and their legs and feet dull greenish gray. Juveniles have a dull brown chin and throat, less well-defined streaks on the back than adults, and mottled rather than streaked underparts.
分类信息
The striated softtail is monotypic.
- 学名
- Thripophaga macroura
- 命名信息
- (Wied-Neuwied, M, 1821)
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Thripophaga
分布与栖息地
The striated softtail is found in coastal southeastern Brazil from southern Bahia state south into northern Rio de Janeiro state. It inhabits tropical lowland evergreen forest, especially areas with dense vine tangles. In elevation it ranges from near sea level to 1,000 m (3,300 ft).
- 迁徙
- Resident species
行为
The striated softtail is a year-round resident throughout its range.<p>The striated softtail feeds on arthropods. It forages singly, in pairs, and in small groups that might be families, and usually as part of a mixed-species feeding flock. It forages from the forest's understorey to the subcanopy, gleaning its prey mostly in vine tangles but also along branches and in foliage.<p>The striated softtail's breeding season has not been defined but active nests have been found between September and January. The nest is a ball of grass, moss, twigs, and rootlets with a vertical entrance tube at the bottom. It is typically placed (or woven onto) a branch fork about 10 to 25 m (33 to 82 ft) above the ground. The clutch size is three eggs. The incubation period, time to fledging, and details of parental care are not known.<p>The striated softtail's song is an "unstructured mixture of short rattles, 'tjew-tjew-tjew' notes, and sparrowlike chatters" that is often sung in duet. Its call is a loud "kit-kit-kit".
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
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Microspingus torquatus
Striking tanager of open woodland, consisting of two relatively distinctive subspecies. Distinguished from other warbling-finches in range by its black breast band. Nominate torquatus is a resident of the southern Bolivian Andes, especially open scrub and cactus forest of the dry valleys. Migratory pectoralis shows a thicker breast band and darker undertail coverts, and breeds in the Pampas, Monte, and northern Chaco dry forests in north central Argentina, dispersing north to lowlands of W Paraguay and SE Bolivia.
Purple-throated Sunbird
Leptocoma sperata
A very small bird of wooded areas from the lowlands to lower elevations in the mountains. Male has dark upperparts with a greenish crown and rump, a deep purple throat and upper chest, and a bright red lower chest and upper belly. In Sulu and west Mindanao birds, the red on the chest is replaced by yellow with an orange wash. Male is distinctive. Female resembles several other drab female sunbirds, but has a yellow brow and chest and a brown wing. Call is a sharp upslurred “tsweep!”
Marail Guan
Penelope marail
Medium-sized guan of rainforest canopy. Usually appears entirely dark; note short-legged profile, contrasting red throat patch, and sluggish behavior. Slips quietly through canopy, feeding on fruit; typically found alone or in pairs but may congregate at fruiting trees. Generally wary, especially where hunted, but sometimes tolerates close approach. May be seen near the ground at forest edge or along roadsides. Very similar to Spix’s Guan; Marail is smaller and shorter-legged, but this can be surprisingly difficult to judge accurately.
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