Line-fronted Canastero
Asthenes urubambensis
Small wren-like bird with a long, pointed tail. Warm reddish brown with extensive white streaking on the undersides and face; also look for its thin white eyebrow and small reddish-orange throat patch. Forages singly or in pairs on the ground and in shrubs in low forest near the treeline; particularly likes Polylepis forests. Compared to similar streaked canasteros, which are mostly found in more open, grassy habitats without trees, look for its white eyebrow and unmarked back and wings.
识别特征
The line-fronted canastero is 17 to 18 cm (6.7 to 7.1 in) long and weighs 16 to 20 g (0.56 to 0.71 oz). It is a large canastero with a narrow spiny tail. The sexes have the same plumage. Adults of the nominate subspecies have a conspicuous whitish supercilium that widens past the eye on an otherwise light brownish face with narrow dark brown streaks. Their forehead ("front") is dark brown with well-defined golden-brown stripes that fade on the brown crown. Their hindneck and upperparts are rich brown, the former with blurry light brown streaks that fade on the upper back and pale streaks on the uppertail coverts. Their wings are rich brown with dark fuscous tips on the flight feathers. Their tail is rich brown. Their chin is pale tawny to dark rufous, their upper throat tawny to orange-rufous, and their lower throat light buff-brown with dark brown streaks. Their breast is a paler buff-brown than the throat with wide dark brown and pale buff streaks that fade onto the pale buff belly. Their flanks and undertail coverts are rich brown; the latter have pale streaks. Their iris is brown, their maxilla black to gray-horn, their mandible silver-gray to pinkish, and their legs and feet olive to gray. Subspecies A. u. huallagae has slightly darker and redder upperparts than the nominate, with streaks mostly on the forehead and hindneck. It also has more and whiter streaks on the belly and flanks.
分类信息
The line-fronted canastero has two subspecies, the nominate A. u. urubambensis (Chapman, 1919) and A. u. huallagae (Zimmer 1924).
- 学名
- Asthenes urubambensis
- 命名信息
- (Chapman, 1919)
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Asthenes
分布与栖息地
The line-fronted canastero has a disjunct distribution. Subspecies A. u. huallagae is found in the Andes of central Peru between the departments of San Martín and Pasco. The nominate subspecies is found in the Andes from the departments of Cuzco and Puno in Peru south into western Bolivia as far as La Paz and Cochabamba departments. The species inhabits the ecotone between timberline and páramo grasslands, a landscape characterized by mossy scrub, Gynoxys and Ribes bushes, and groves of Polylepis trees. In elevation it ranges between 3,050 and 4,300 m (10,000 and 14,100 ft).
- 迁徙
- Resident species
行为
The line-fronted canastero is a year-round resident throughout its range.<p>The line-fronted canastero feeds on arthropods. It forages singly or in pairs, gleaning prey from tree branches and shrubs, and less often the ground.<p>Nothing is known about the line-fronted canastero's breeding biology.<p>The line-fronted canastero's song is "an ascending trill"; its call is "a high 'tseut' ".
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Common Sandpiper
Actitis hypoleucos
Small bicolored sandpiper which often bobs its tail in a distinctively wagtail-like manner. Plain brown with white underparts; distinguished from bulkier and rounder-headed Green Sandpiper by a prominent white spur at the shoulder. Found in a variety of wetland habitats; breeds on stony ground along rivers and lakeshores, with migrants occurring on muddy and rocky substrates from concrete canal banks to channels in tidal mudflats. Mainly found as singles or in small groups, not in flocks or mixed with other species.
Collared Petrel
Pterodroma brevipes
A small gray-and-white petrel with a dark hood, a bold dark “M” pattern across the upperwings, and a distinctive bold black underwing pattern. Very variable. A pale morph resembles Gould’s Petrel, while a distinctive sooty-brown dark morph shows exceptionally bold underwing markings. Pale morph separated from Gould’s Petrel by its much bolder underwing pattern and its hood, which often meets below the neck, creating a full collar. Silent at sea.
Sulawesi Cuckoo
Cuculus crassirostris
A large, long-tailed cuckoo with chocolate-brown upperparts and tail, a contrasting pale gray head, and thickly barred underparts. Juvenile has a black head and whitish underside. A seldom-seen bird of forested lowlands and mountains, most abundant in the foothills. Distinguished from most other cuckoos by the heavy barring below and the brown back. Separated from Large Hawk-Cuckuoo by smaller size, absence of throat streaking, and lack of any rufous throat coloration. Distinctive call, often given before dawn, is rapid, three-note “kaka-koo.”
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