Rusty-fronted Canastero
Asthenes ottonis
Small, long-tailed bird of high-elevation scrub. Light brown, with reddish wings and tail and small reddish patches on the throat and forehead. Prefers dense shrubby areas, including Polylepis woodland, where it forages secretively within bushes. Its small size, lack of strong streaking, and long, reddish tail distinguish it from similar species within its range. Listen for its energetic song, an accelerating series of high, harsh notes.
识别特征
The rusty-fronted canastero is 18 to 19 cm (7.1 to 7.5 in) long and weighs about 13 g (0.46 oz). The sexes have the same plumage. Adults have a grayish buff supercilium and arc below the eye, a small dark line in front of the eye, and a dark brownish patch behind the eye on an otherwise dull brownish face with pale streaks. Their forehead ("front") is rufous with faint pale streaks. Their crown, back, and rump are rich brown and their uppertail coverts chestnut-rufous. Their wings are mostly rufous-chestnut with dark fuscous tips on the flight feathers. Their tail is rufous-chestnut; the inner three pairs of feathers are longer than the others and have dark fuscous shafts. Their chin and upper throat are light orange-rufous to chestnut-rufous, their lower throat pale grayish buff streaked with brownish gray, their breast slightly darker and streaked with pale buff, their belly buff-whitish, and their flanks and undertail coverts rufescent brown. Their iris is dark brown to brown, their maxilla dark horn to blackish, their mandible silvery to dark horn with a dark tip, and their legs and feet olive-gray to dark gray.
分类信息
The rusty-fronted canastero is monotypic. At times it has variously been treated as a subspecies of the canyon canastero (A. pudibunda) and as a superspecies with it and the maquis canastero (A. heterura), but genetic data show it to be most closely related to the eye-ringed thistletail (A. palpebralis).
- 学名
- Asthenes ottonis
- 命名信息
- (Berlepsch, 1901)
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Asthenes
分布与栖息地
The rusty-fronted canastero is found in the Andes of south-central Peru's Huancavelica, Ayacucho, Apurímac, and Cuzco departments. It inhabits semi-humid to arid montane scrublands and the edge of Polylepis woodlands. In elevation it ranges between 2,750 and 4,000 m (9,000 and 13,100 ft).
- 迁徙
- Resident species
行为
The rusty-fronted canastero is a year-round resident throughout its range.<p>The rusty-fronted canastero's diet and foraging behavior are not well known. It is usually seen singly or in pairs. It is thought to feed on arthropods gleaned from low vegetation and the ground.<p>Nothing is known about the rusty-fronted canastero's breeding biology.<p>The rusty-fronted canastero's song is "3 high-pitched ascending notes followed by a rapidly descending series, 'bsee-bzéé-bzee-di-di-di-di-d-d-d' ". Its call has been described as "high-pitched 'veer' and nasal 'djeeh' ".
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
White-browed Bush-Robin
Tarsiger indicus
Small, furtive, ground-dwelling songbird with thin white eyebrow. Adult males are slaty above and dusky ochre below, with a bright white eyebrow. Female is duller and browner overall, with a thinner eyebrow. Breeds in montane forests, favoring areas with a dense brushy understory, such as dwarf bamboo or Rhododendron. Descends into foothills during the winter, generally in similarly dense habitats. Song is a short burst of pleasant warbled notes, and calls include a rising and mellow “wheet.”
Scaly Chatterer
Argya aylmeri
An unusual slim babbler with a very long tail. Paler than most other babblers in range, gray-brown overall with scaling on the breast, a yellowish bill, and pale blue bare skin around the eye. Found in areas of dense undergrowth within dry thorn savanna and thorn scrub, almost always in small groups. Somewhat similar to other babblers, especially Rufous Chatterer, but much paler and generally found in drier habitat. An inconspicuous and skulking bird that is usually detected by call: quiet, high-pitched “tsit” notes that sound like a dry twig scraping on a windowpane.
Long-billed Bernieria
Bernieria madagascariensis
Large, long-tailed, long-billed, dull-olive tetraka. Madagascar endemic that is found in rainforest, dry deciduous forest, and locally in spiny forest. Prefers the mid-story, and often joins mixed flocks with tetrakas and other birds. Song is a fairly musical phrase of up-and-down whistles. Call is a rough “trek-trak”. Separated from tetrakas by its larger size and its longer bill and tail. Doesn’t have the pale eye-ring of Spectacled Tetraka or the gray head of Gray-crowned Tetraka. Much more olive-colored than brush-warblers.
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