Tufted Tit-Spinetail
Leptasthenura platensis
Small, charismatic species with a long spiky tail and a short crest. Has generally pale gray-brown plumage with a streaked throat and crest. Occurs in woodland, scrub, and gallery forests. Forages acrobatically from the understory up to the canopy. The song starts with sharp notes and ends with a very thin trill: “tsi, tsirrrrr.”
识别特征
The tufted tit-spinetail is 15 to 17 cm (5.9 to 6.7 in) long and weighs 10 to 12 g (0.35 to 0.42 oz). It is a small, slender, long-tailed furnariid with a short crest and a short bill. The sexes have the same plumage. Adults have a thin pale supercilium on an otherwise dull grayish brown face. Their crown and crest are dark brown with paler streaks, their back and rump dull grayish brown, and their uppertail coverts a paler grayish brown with a tawny tinge. Their wings are mostly grayish brown with some paler feather edges and tips. Their tail is mostly dark fuscous with some dull rufous at the ends of the outermost feathers; it is graduated and the feathers narrow at the tips giving a spiny appearance. Their throat and upper breast are whitish with faint brownish markings; the rest of their underparts are pale grayish brown with slightly darker flanks and undertail coverts. Their iris is brown, their bill black with a pale base to the mandible, and their legs and feet dark olive-green. Juveniles do not have a crest; they have a less distinctly marked crown and breast than adults and rounded tail feathers.
分类信息
The tufted tit-spinetail is monotypic.
- 学名
- Leptasthenura platensis
- 命名信息
- Reichenbach, 1853
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Leptasthenura
分布与栖息地
The tufted tit-spinetail is found in northern and central Argentina from Salta Province to Buenos Aires Province, in western Rio Grande do Sul in extreme southern Brazil, and in most of Uruguay. There are only sight records in Paraguay, which leads the South American Classification Committee of the American Ornithological Society to call it hypothetical in that country. It inhabits a variety of landscapes including gallery forest and other riparian zones, arid scrublands, dry woodlands, and brushy areas and Monte Desert near the last. In elevation it ranges from sea level to 1,000 m (3,300 ft).
- 迁徙
- Resident species
行为
The tufted tit-spinetail is mostly a year-round resident throughout its range, though some individuals appear to wander out of the species' core range.<p>The tufted tit-spinetail feeds on arthropods. It forages in pairs or in small groups that may be families, and feeds from the forest's understorey to its canopy. It usually forages by gleaning its prey from foliage, twigs, and the bark of branches. It sometimes hangs upside down to reach prey.<p>The tufted tit-spinetail breeds in the austral spring and summer. It is thought to be monogamous. It builds a cup nest of twigs, grass, feathers, and hair in a cavity. It uses natural cavities, woodpecker holes, and the previous season's nests of other furnariids including the "mud ovens" of horneros. The clutch size is two to four eggs and occasionally up to six. The incubation period is about 14 to 15 days and fledging occurs about 15 or 16 days after hatch. Both parents provision the young.<p>The tufted tit-spinetail's song is "an accelerating, descending trill introduced by distinct sharp notes, 'tsi, tsirrrrr' ". Its most common call is "a series of short notes followed by sharp trill, e.g. 'pit-pit-pit … prrr' ". The call is also described as "tswee tswee tswee tittle-tit ending in a rattle".
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Blue-lored Antbird
Hafferia immaculata
Large, chunky, dark antbird restricted to northern Colombia and western Venezuela. Male entirely black with namesake blue lores and triangular patch of paler bluish skin behind eye. Female similar but warm dark brown instead of black. Long broad tail often strongly flicked downward and raised back up slowly. Usually seen in pairs, which forage close to the ground within forest. Can be shy and difficult to see. Sometimes follows ant swarms, but frequently seen away from them. Found mainly in the foothills and lower subtropics, up to 1,800 m. Listen for a mourning series of plaintive whistles, “teew, teew, teew, teew.”
Socotra Cisticola
Cisticola haesitatus
Small, pale brown, heavily streaked cisticola. Endemic to Socotra, where it inhabits low shrublands and other habitats with significant bushy cover, mostly at low elevations. The song is a long series of dull “zit” notes, often given in flight; very similar to the song of the widespread Zitting Cisticola, which is not found on Socotra. Within its range, can only be confused with Socotra Warbler, but easily distinguished by the paler coloration and well-defined streaking.
Manus Fantail
Rhipidura semirubra
A fairly small, long-tailed bird of undergrowth in wooded habitats on the Admiralty islands. Bright rufous crown, back and rump. Black mask, wings and tail with white tip. White throat and black chest band with black dots below. Forages actively with tail cocked, fanned and wings drooped. The only other fantail in range is the Northern Fantail which has a gray rather than rufous back. Call, a sharp “pik!”. Song, a series of scratchy whistles.
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。