Junin Canastero
Asthenes virgata
Chunky, streaked brown bird with a long tail that is often held cocked. Warm reddish brown with extensive white streaking through its head, back, and sides. Forages on or near the ground in open, high-elevation habitats, often with tall bunches of grass; occasionally found around the treeline or the edges of Polylepis forests. Compared to the similar Line-fronted Canastero found in more heavily vegetated habitats, Junin Canastero is larger with a streaked back, a thicker bill, and a paler white breast with more diffuse streaking.
识别特征
The Junin canastero is about 17.5 to 18 cm (6.9 to 7.1 in) long; one speciment weighed 22 g (0.78 oz). The sexes have the same plumage. Adults have a narrow buff supercilium on an otherwise ochraceous brown face. Their crown is black with orange brown streaks. Their nape and upper back are black with pale buff streaks. Their lower back, rump, and uppertail coverts are medium brown or olive brown with black and buff streaks. Their wing coverts are olive brown with black and buff streaks. Their outer flight feathers are rufous with reddish brown edges and the inner ones dusky brown with olive brown edges; all have dusky tips. Their central pair of tail feathers are dusky brown, the next pair have dusky brown inner webs and rufous outer webs with dusky edges, and the other three pairs are rufous with a black line on the outer web and black and dusky mottling on the inner web. Their chin is ochraceous buff. Their breast and belly are pale creamy brown with faint tawny olive streaks on the breast. Their flanks are tawny olive with buffy white streaks and their vent area is tawny. Their iris is dark brown, their maxilla horn, their mandible grayish pink, and their legs and feet olive.
分类信息
The Junin canastero is monotypic. It and the scribble-tailed canastero (A. maculicauda) have at times been suggested as subspecies of the many-striped canastero (A. flammulata). Genetic data show the three to be separate but closely related sister species. In central Peru the Junin canastero's range slightly overlaps that of the many-striped canastero, and hybrids of the two species are known from that zone.
- 学名
- Asthenes virgata
- 命名信息
- (Sclater, PL, 1874)
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Asthenes
分布与栖息地
The Junin canastero has a disjunct distribution in central and southern Peru. It is found where the departments of Junín, Pasco, and Lima meet and also from Ayacucho department through Cuzco and Apurímac departments slightly into Puno department. There are scattered sightings between these two population centers.<p>The Junin canastero primarily inhabits humid landscapes with tall bunch grass, sometimes those with scattered bushes and near stands of polylepis. It also sometimes occurs in rocky areas of bunchgrass without bushes or trees. In elevation it ranges between 3,300 and 4,600 m (10,800 and 15,100 ft).
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
- 种群趋势
- unknown
照片
分布
鸟叫声
其他鸟类
Antarctic Prion
Pachyptila desolata
A medium-sized prion with a noticeable dark “M'' stretched across their back from wingtip to wingtip noticeable in flight. They breed on Antarctic and subantarctic islands in the South Indian, Southern and South Atlantic Oceans and are widespread and abundant at sea around these areas. Regular visitor to New Zealand and Southern Australia during the austral winter. Very similar to other prion species, especially Salvin’s prion, with the Antarctic prion having a slightly brighter blue bill with straighter sides and a larger nail at the tip.
Black-winged Cuckooshrike
Lalage melaschistos
An overall sooty-colored cuckooshrike with broad white tips to the tail feathers. Male is dark sooty-gray with a slaty sheen, slightly paler on rump. Underparts paler toward tail; wings black. Female is very similar to male, but paler in general, often weakly barred with dark and pale gray on underparts. Male has a black mask, while female has dark lores and a faint eyering. Juvenile is blackish-brown above and brownish-gray below, heavily scaled whitish all over, with broad white tips on wing feathers. Immature like female, but more strongly and extensively barred below. Song is a loud series of whistles “pe-pe-pe-peew-peew-pew”; sometimes the starting notes are skipped. Found in all types of woodlands, including broad-leaved forests, sometimes even near cultivation during non-breeding season.
Andean Laniisoma
Laniisoma buckleyi
One of the Holy Grails of Andean birding, this distinctive green-and-yellow species is slightly larger than a becard. Note scaled sides and breast, a long hooked bill, and large eyes. Males have a black cap with olive-green cheeks and back and bright yellow underparts. Females have a less distinct black cap and more dark scaling on the underparts. Very rare, local, and infrequently seen, with records on the east slope of the Andes from western Venezuela to Bolivia. Found in humid foothill forests where it can be seen foraging from the understory all the way to the subcanopy. The song is a very thin, high-pitched “psieeeehh,” repeated regularly.
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