Grauer's Swamp Warbler
Bradypterus graueri
Nondescript, long-tailed, long-billed wetland warbler. There is a white eyebrow and dark spotting on the throat and breast. Found very locally in high-elevation marshes of the Albertine Rift. Fairly secretive, but will perch up to sing. The song is a dry trill preceded by a couple of “chyet” notes. Very similar to Little Rush-Warbler, but has a bolder white eyebrow, dark chest spotting, and a very different song. The variably streaked breast separates it from reed warblers.
识别特征
Grauer's swamp warbler (Bradypterus graueri) is a species of Old World warbler in the family Locustellidae. It is native to the Albertine Rift montane forests. Its natural habitats are freshwater lakes and freshwater marshes. It is threatened by habitat loss. Grauer's swamp warbler is endemic to the Albertine Rift and is found in montane papyrus swamps above 1900m. An investigation of the species population genetic structure revealed three clades across this region: clade 1, Virunga Volcanoes and Kigezi Highlands; clade 2, Rugege Highlands; and clade 3, Kahuzi-Biega Highlands (with clades 2 and 3 being sister groups). The divergence between these clades is thought to be a result of landscape dynamics and a historic period of aridity. The name commemorates the German zoologist Rudolf Grauer who collected natural history specimens in the Belgian Congo.
分类信息
Genus: Bradypterus; Family: Locustellidae; Order: Passeriformes.
- 学名
- Bradypterus graueri
- 命名信息
- Neumann, 1908
- 目
- Passeriformes
- 科
- Locustellidae
- 属
- Bradypterus
分布与栖息地
- 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
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