Green Crombec
Sylvietta virens
A small, virtually tailless olive-green bird. Note the slightly darker cap and the pale eyebrow. There is geographical variation in the color of the underparts, which vary from brown-and-gray to buff-and-yellow. Found at middle levels and in the understory of rainforest, secondary growth, and scrub, often in pairs or small groups. Very similar to Lemon-bellied Crombec, but slightly larger, longer-billed, and even the subspecies that shows yellow on the belly is duller yellow below than Lemon-bellied. An inconspicuous bird that is most often detected by its song, a quick musical warble in a descending pattern.
识别特征
The green crombec (Sylvietta virens) is a species of African warbler, formerly placed in the family Sylviidae. It is widespread across the African tropical rainforest. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist shrubland.
分类信息
Genus: Sylvietta; Family: Macrosphenidae; Order: Passeriformes.
- 学名
- Sylvietta virens
- 命名信息
- Cassin, 1859
- 目
- Passeriformes
- 科
- Macrosphenidae
- 属
- Sylvietta
分布与栖息地
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Principe Thrush
Turdus xanthorhynchus
A large brown thrush with pale blue-gray eyes, a bright yellow bill, and scaly underparts. The juvenile is flecked with buffy above. The only thrush on Príncipe, where it is a rare resident in lowland and mid-elevation forest between 100 and 800 meters, preferring ravines and valley floors. Song is a varied whistled medley that is mostly given at dawn and dusk, and alarm call is a typical thush-like “dzzrt.”
African Rail
Rallus caerulescens
Classic, mid-sized rail. Note the brown back, gray head and chest, barred belly, and reddish bill and legs. Found in wetlands ranging from flooded grassland to deep swamps. Especially favors cattail marshes. Fairly reclusive but walks out into the open more often than most rails. Usually detected by call, a loud, accelerating series of notes that descend the scale. Shares a similar color pattern with African Crake, but African Rail has a longer bill and an unspotted back.
Ruddy Foliage-gleaner
Clibanornis rubiginosus
Skulking and elusive rusty-brown bird of humid evergreen and pine-evergreen forest in highlands and foothills; heard much more often than seen. Typically stays well hidden, clambering in understory and dense second growth, often near gullies and earthen banks, where it digs a nest burrow; at times forages on the ground. Note the stout bill, pale eyering, and rich rusty throat and breast.
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