Rufous-backed Treehunter
Thripadectes scrutator
Rare and very shy bird of high-elevation cloud forest along the east slope of the Andes. Boldly streaked with black and buff. Plumage is very similar to that of the more common Striped Treehunter, but it is larger and the markings are much more contrasting. Due to the furtive nature of these birds, voice is usually the easiest way to separate them. Rufous-backed Treehunter gives a harsh, rattling trill as well as abrupt “chak” notes. Inhabits dense tangles of bamboo and usually very hard to see.
识别特征
The Peruvian treehunter is 23 to 24 cm (9.1 to 9.4 in) long and weighs 56 to 61 g (2.0 to 2.2 oz). It is a robust furnariid with a heavy bill. The sexes have the same plumage. Adults have a blackish face with sharp buff streaks. Their lores are blackish speckled buff. Their crown, the sides of their neck, and their upper back are blackish with wide but diffuse buff streaks that disappear by the lower back. Their lower back is rich brown with faint rufous streaks that disappear into the dark rufous rump. Their uppertail coverts are chestnut. Their wing coverts are chestnut, their flight feathers pale rufous-chestnut, and their tail chestnut. Their throat and breast are blackish with buff streaks that are heaviest on the upper breast. Their lower breast, belly, and flanks are brownish with faint buff streaks that fade towards the bottom. Their undertail coverts are rufous. Their iris is brown to dark brown, their bill black, and their legs and feet gray to brown.
分类信息
The Peruvian treehunter is a sister species of the uniform treehunter (T. ignobilis) and flammulated treehunter (T. flammulatus). It is monotypic. However, the individuals in the southern part of the species' range are more reddish than the northern ones and might warrant recognition as a subspecies.
- 学名
- Thripadectes scrutator
- 命名信息
- Taczanowski, 1874
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Thripadectes
分布与栖息地
The Peruvian treehunter is found along the east slope of the Andes from northern Peru's Department of Amazonas through Peru south and east of the Marañón River into Bolivia as far as Cochabamba Department. It inhabits the zone from upper elevation cloudforest into elfin forest, a humid landscape where it favors large dense stands of Chusquea bamboo. In elevation it ranges from 2,450 to 3,500 m (8,000 to 11,500 ft).
- 迁徙
- Resident species
行为
The Peruvian treehunter is a year-round resident throughout its range.<p>The Peruvian treehunter is reported to feed on arthropods, molluscs, and small vertebrates.It forages in dense undergrowth, usually within about 2 m (7 ft) of the ground, and is usually by itself though occasionally in pairs. It very rarely joins mixed-species feeding flocks. Its feeding technique is not well known but it is believed to probe and glean in moss and foliage along bamboo, tree limbs, and trunks.<p>The Peruvian treehunter is thought to be monogamous. Nothing else is known about its breeding biology.<p>The Peruvian treehunter's song is "a loud rattle, consisting of a rapid series of rising-falling/accelerating-decelerating notes tchu-tchu-tchu-tchu’TCHI’TCHI’TCHI’TCHI’TCHI’TCHI’ tchu’tchu-tchu-tchu-tchu. Its call is "a sharp, loud TCHIK".
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Piping Woodcreeper
Deconychura typica
Fairly small, warm brown woodcreeper with buffy spots on breast and vague buffy eyebrow. Note relatively short, straight bill. Very similar to many other species of woodcreepers but smaller than most others in range; tail relatively longer than most other woodcreepers but this is of limited use in field identification. Focus on overall shape, especially the vaguely “pin-headed” look and scruffy feathers on the nape. Generally found in primary forest, usually following a mixed-species flock. Best identified by voice, though not a particularly vocal species. Song is a long, fast series of medium-pitched piping notes that at first speed up and then slow down at the end of the phrase.
White-sided Hillstar
Oreotrochilus leucopleurus
Small hummingbird of the Andes from southern Bolivia through Argentina into central Chile; found in rocky and shrubby valleys, villages, and any open or semiopen areas with flowers. Often builds nest under eaves of buildings or bridges: a bulky cup of plant material and wool to insulate against cold nights. Fairly common. Readily identified in most of range by extensively white tail. Male has an emerald green gorget and a broad blue-black stripe on belly. Female is rather drab, but note slightly decurved bill, spotted throat, and tail pattern.
Ashy-breasted Flycatcher
Muscicapa randi
A little-known small drab bird of lowland and foothill forest. Gray-brown above, darker in the wing, with a gray-brown chest blending to a white belly and a small white throat patch. Note the bicolored bill, black above and orange below. Similar to Furtive Flycatcher, but slightly larger, with an orange lower bill, no rufous outer tail feathers, and no black band on the end of the tail. Song consists of very high-pitched short phrases repeated at intervals.
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