White-bellied Erpornis
Erpornis zantholeuca
Small, crested, yuhina-like bird, frequently seen as a part of mixed flocks in a wide range of forested habitats. Upperparts yellowish green, underparts dingy gray except for yellow undertail coverts and whitish throat. Forages mostly in the upper layers of vegetation, from which its loud “nay nay” call is often heard.
识别特征
In its coloration, morphology and acrobatic habits, this bird resembles a vireo quite a lot. However, it has a prominent crest like many yuhinas, which together with the unusual biogeography has served to obscure its true relationships for a long time. The crested head, back, wings and tail of this bird are olivaceous or golden brown while the underparts are white.<p>Erpornis possesses well-developed musculature for gaping or opening the bill forcefully and may use this to pry bark from trees to seek insects.
分类信息
Formerly placed in Yuhina and often still misleadingly called "white-bellied yuhina", it is the most distinct member of this "genus" in its obsolete paraphyletic delimitation. It is by no means closely related to the Timaliidae (Old World babblers), where most of the former members of Yuhina are still placed. The Timaliidae are members of the superfamily Sylvioidea in infraorder Passeri, whereas the erpornis is the closest relative of the vireos (Vireonidae), which are a more ancient lineage of songbirds. Indeed, it now is usually included in the Vireonidae as one of their few Old World representatives.<p>Several subspecies are recognised: E. z zantholeuca, E. z tyrannula, E. z griseiloris, E. z sordida, E. z canescens, E. z interposita, E. z saani and E. z brunnescens.
- 学名
- Erpornis zantholeuca
- 命名信息
- Blyth, 1844
- 目
- Passeriformes
- 科
- Vireonidae
- 属
- Erpornis
分布与栖息地
- 迁徙
- Resident species
保护状况
- 种群趋势
- unknown
照片
分布
鸟叫声
其他鸟类
Somali Courser
Cursorius somalensis
A plain, pale courser with black lines behind the eyes that make a “V” when seen from behind. In flight, the wings are partially black with a white trailing edge. Found in dry savanna, thornscrub, and desert. Usually in small groups, which tend to flee from disturbance on foot. Very similar to Cream-colored Courser, but browner and shorter-winged, with partially pale rather than completely black underwings in flight. Fairly similar to Temminck’s Courser, but paler overall, lacks chestnut in the crown, and has a paler underwing. Calls include a quiet “whit” and a louder “trow.”
Banded Barbet
Lybius undatus
A medium-sized barbet with a black back, a barred belly, and a red patch above the bill. There is considerable geographical variation; the throat varies from speckled to solidly black, and the head can be black with a thin white eyebrow, or black-and-white. Found at middle elevations in montane woodland in the Abyssinian highlands. Not very vocal, but does give quiet rasping calls. Has a red patch above the bill like Red-fronted Barbet, but easily separated by the barred belly.
Plumed Guineafowl
Guttera plumifera
A large, shy black gamebird with ornate white spots, found in tall, open understory of tropical lowland forest. Named for the conspicuous plume of black feathers on top of its head, this species also possesses a distinctive dark and featherless face. Vocalizations are not well described, but appear to consist of quacking cackles and raucous, nasal “kak-kak-kak” series. Range overlaps only with the smaller Black Guineafowl, which has a mostly naked bright red head and lacks the Plumed Guineafowl’s crest and conspicuous white spotting.
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