Striated Earthcreeper
Geocerthia serrana
Handsome bird with a long, curved bill found only in the high Andes of northern and central Peru. It is brown with chestnut wings and tail, heavily streaked underparts, and white eyebrows. Inhabits areas with dense cover to hide in, but often ventures out into the open to feed. While largely terrestrial, it often perches higher, especially to sing. Gives a variety of harsh, rattling vocalizations.
识别特征
The striated earchcreeper is 18 to 20.5 cm (7.1 to 8.1 in) long and weighs 41 to 52 g (1.4 to 1.8 oz). It is a large earthcreeper with long slightly decurved bill. The sexes' plumages are alike. Adults of the nominate subspecies have a whitish buff supercilium. Their crown is dusky brown with narrow whitish buff streaks on the forehead. The sides of their neck and their back are dark brown; the neck has thin whitish buff streaks. Their rump is dark rufous brown. Their tail is dull rufous; sometimes the central pair of feathers are browner. Their wings are rufous. Their throat is dirty white with some dusky scaling and their breast and belly dull gray brown or olive brown with whitish buff streaks. Their iris is any of several dark shades of brown, their bill black or horn, and their legs and feet gray or brown. Juveniles have a scaled appearance on their breast and faint bars on their upper belly. Subspecies G. s. huancavelicae has much darker upperparts than the nominate, and darker and grayer underparts with little warm brown.
分类信息
The striated earthcreeper was long placed in genus Upucerthia with several other earthcreepers. Genetic studies in the early 2000s refuted that placement and genus Geocerthia was created for it.<p>The striated earthcreeper has two subspecies, the nominate G. s. serrana (Taczanowski, 1875) and G. s. huancavelicae (Morrison, ARG, 1938).
- 学名
- Geocerthia serrana
- 命名信息
- (Taczanowski, 1875)
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Geocerthia
分布与栖息地
The nominate subspecies of the striated earthcreeper is found in the Andes of northern and central Peru from the Department of Cajamarca south to the departments of Lima and Junín. Subspecies G. s. huancavelicae is found only in the southern Peruvian Andes of the Department of Huancavelica.<p>The striated earthcreeper inhabits areas of denser woody vegetation than most other earthcreepers. It mostly occurs in arid montane scrublands, on rocky slopes with bushes, and in Polylepis woodlands. In elevation it mostly ranges between 3,000 and 4,600 m (9,800 and 15,100 ft) but occurs locally below that.
- 迁徙
- Resident species
行为
The striated earthcreeper is a year-round resident throughout its range.<p>Little is known about the striated earthcreeper's diet though arthropods appear to be its major component. It typically forages singly or in pairs. It does most of its foraging on the ground by probing, gleaning, and flicking aside leaf litter. In Polylepis woodlands it also probes bark crevices for prey.<p>Little is known about the striated earthcreeper's breeding biology. Its breeding season appears to span at least October to January. Only one nest has been described; it was in a burrow in a pebbly earth bank. The species has also nested in adobe walls.<p>One publication described the striated earthcreeper's song as "a harsh slowing trill introduced by 3 notes, the 1st longest, keep kip kip trrrrrrrrr-r-r r, lasting c. 4 s" and its call as "a single, drawn-out, somewhat wheezy weeeee". Another describes the song as "a dry accelerating-decelerating trill: tp tp tp trr'r'r'r'r'r'e'e'e'e'e'r'r" and the call as "a scratchy djer-djer-djer-djer-djree".
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Black-breasted Puffbird
Notharchus pectoralis
Rather large puffbird found from central Panama to extreme northwest Ecuador. Striking black-and-white pattern; especially note broad black breast band and isolated white cheek patch. Typically found singly or in pairs; usually perched in the canopy or subcanopy of lowland forest and edge below 1,000 m. Pied Puffbird is smaller with a white eyebrow. White-necked Puffbird is larger with a white forehead and more extensive white on the neck and forehead (lacking a black mustache).
Purple-collared Woodstar
Myrtis fanny
Small hummingbird found in dry, scrubby regions of the Andes; also in coastal deserts in Peru. Male has a glittering blue throat bordered below by purple. Female lacks this and has a rusty wash on white underparts; the extent of this rusty color varies between individuals. Also note slightly curved bill. Male performs swooping U-shaped display flights, alternately giving high-pitched twitters and low-pitched mechanical sounds while doing so. Not known to visit feeders.
Little Bunting
Emberiza pusilla
Small bunting with an attractive contrasting head pattern: black crown with red-brown central stripe and pale eyering. Rufous cheeks bordered by narrow black lines framing the eyes. In the nonbreeding season, less bright overall but white wingbars more conspicuous. Breeds in taiga forests and open tundra with scattered birches and willows, often near water; song is a pleasant two- or three-part series of bright, buzzy warbled notes. Winters in various open habitats, including fields, brushy roadside ditches, and gardens. Often attracts attention by its sharp clicking "zick" call note.
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