Superciliaried Hemispingus
Thlypopsis superciliaris
A small warbler-like tanager with significant variation across its range. Most birds are olive above and yellow below with a gray crown and obvious white eyebrow. Birds in northern and central Peru are gray above and whitish below, still with an obvious white eyebrow. Birds in western Venezuela have a yellow eyebrow. Compare with Drab Hemispingus, which is duller olive with a less obvious eyebrow, and with Citrine Warbler (especially in Venezuela, where the hemispingus also has a yellow eyebrow). Note Citrine Warbler’s wider eyebrow and paler legs. The hemispingus is usually found in pairs or small groups that forage actively in the canopy of forest or edge, often following mixed-species flocks. Occurs from around 2,200m up to treeline.
识别特征
The superciliaried hemispingus (Thlypopsis superciliaris) is a species of bird in the family Thraupidae. It is found in Bolivia, Colombia, Ecuador, Peru, and Venezuela. Its natural habitats are subtropical or tropical moist montane forests and degraded former forest.
分类信息
The superciliaried hemispingus was formally described as Arremon superciliaris by the French ornithologist Frédéric de Lafresnaye in 1840. Lafresnaye described the species based on a specimen from "Santa Fe de Bogota", which is current-day Bogotá , Colombia. The specific epithet is derived from the Latin word meaning "eyebrowed". The superciliaried hemispingus has seven recognised subspecies in four subspecies groups. The irregular and non-clinal variation in morphological features such as the color of the underparts and supercilium suggests that several of these subspecies may be better treated as separate species. [ 3 ]
- 学名
- Thlypopsis superciliaris
- 命名信息
- (Lafresnaye, 1840)
- 目
- Passeriformes
- 科
- Thraupidae
- 属
- Thlypopsis
分布与栖息地
The superciliaried hemispingus is native to most of the Andes from Venezuela south through Colombia, Ecuador, and Peru to Bolivia, being absent only from the western versant of the Colombian Andes. It is a denizen of moist forests, woodland edges, and secondary forests, typically at elevations of 1,900–3,350 m (6,230–10,990 ft) . In Peru and Ecuador, it is known from elevations as high as 3,450 m (11,320 ft) and 3,700 m (12,100 ft) , respectively. [ 3 ]
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
American Coot
Fulica americana
Plump, chicken-like bird that acts like a duck. Gray overall with blacker head and white bill. Tiny tail and short wings. Feet are large, yellow-green, and oddly lobed. Head jerks back and forth when swimming. Forages for aquatic vegetation anywhere with water: ponds, city parks, marshes, reservoirs, lakes, ditches, and saltmarshes.
Raso Skylark
Alauda razae
Found only on Raso Island of the Cape Verdes. Overall grayish-brown and moderately streaked including the breast. Note the large and heavy bill. Sometimes erects small crest. Belongs to the same genus as Eurasian Skylark, but is smaller with shorter wings and tail than Eurasian Skylark. Found along dry riverbeds on flat plains. Song is similar to that of Crested Lark. Call a short rattle, "Chureep."
Bahama Yellowthroat
Geothlypis rostrata
A largish, slow-moving warbler that inhabits thick vegetation from marshes to pine woodlands with dense thatch-palm undergrowth. Rather similar to Common Yellowthroat, but larger and more robust with a proportionately heavier bill. Males are entirely yellow below unlike Common Yellowthroats of eastern North America. The black mask of the Bahama Yellowthroat does not narrow towards the bill as it typically does in the Common. On the Andros Islands and New Providence, the crown is gray, unlike Common. Similarly, female Bahama Yellowthroats are more extensive yellow below but often have some gray on the lower belly. Songs and calls resemble those of Common, but the “tchuck” note lacks vibrato.
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。