Gansu Leaf Warbler
Phylloscopus kansuensis
一种小型、令人混淆的柳莺，上体呈橄榄黄色，眉纹黄色，具双翼斑和浅色顶冠纹。与许多其他小型柳莺极其相似：橙斑翅柳莺具有更亮的黄色眉纹，而华西柳莺的头部图案则逐渐减弱，且黑色眼线后端有一个小钩状。黄腰柳莺在视觉上极其相似，但眉纹平均而言更浅，下体颜色更深。请注意聆听其鸣唱，那是一系列逐渐加速的尖锐啾啾声，随后是颤音；其叫声包括一连串叮当声的啾啾声。栖息于中海拔森林，通常是灌木丛生的杨树和桦树林；分布海拔比华西柳莺更低。
识别特征
The Gansu leaf warbler (Phylloscopus kansuensis) is a small passerine bird known only from China. It belongs to the leaf warbler genus Phylloscopus within the family Phylloscopidae. It was formerly treated as a subspecies of Pallas's warbler (P. proregulus) but is now regarded as a separate species based on differences in voice and cytochrome-b gene sequences. It is 10 cm long, slightly larger than Pallas's warbler. It has greenish upperparts, pale underparts and a pale rump. The head has a long white supercilium and a pale stripe along the centre of the crown. The wings have one conspicuous wingbar, a slight second bar and whitish edges to the tertials. The song is very different from Pallas's warbler and consists of a thin, high-pitched note followed by a series of accelerating notes and finally a trill. It is known to breed only in Gansu and Qinghai provinces in northern China. Its wintering grounds are uncertain but probably lie in Yunnan province in southern China. It is found up to 3,200 metres above sea-level in deciduous forest with some spruce and juniper. It is not currently known to be threatened with extinction and so is classed as a species of Least Concern by BirdLife International.
分类信息
Genus: Phylloscopus; Family: Phylloscopidae; Order: Passeriformes.
- 学名
- Phylloscopus kansuensis
- 命名信息
- Meise, 1933
- 目
- 雀形目
- 科
- 柳莺科
- 属
- 柳莺属 (Phylloscopus)
分布与栖息地
Breeding range: PAL : nc China. Non-breeding range: sc China.
- 繁殖区
- PAL : nc China
- 非繁殖区
- sc China
- 迁徙
- 完全迁徙鸟
行为
迁徙模式: 完全迁徙鸟.
保护状况
种群趋势: 稳定.
- 种群趋势
- 稳定
照片
分布
鸟叫声
其他鸟类
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