Bicol Ground-Warbler
Robsonius sorsogonensis
A medium-sized bird of lowland and foothill forest floor, often in rocky areas. Fairly stout of body and bill, with long legs and large feet. Pale below with a grayish band across the chest and brown under the base of the tail. Note white throat, brown upperparts with two dotted white wingbars, rufous edging to the wing and tail feathers, and thin black moustache stripe. Unmistakable. Song consists of a very high-pitched “tseeeep soo tseeeep!”
识别特征
EBird describes the bird as "A medium-sized bird of lowland and foothill forest floor, often in rocky areas. Fairly stout of body and bill, with long legs and large feet. Pale below with a grayish band across the chest and brown under the base of the tail. Note white throat, brown upperparts with two dotted white wingbars, rufous edging to the wing and tail feathers, and thin black moustache stripe. Unmistakable. Song consists of a very high-pitched “tseeeep soo tseeeep!"<p>The Bicol ground warbler was described by the ornithologists Austin L. Rand and Dioscoro S. Rabor in 1967 and given the binomial name Napothera sorsogonensis where it was conspecific with the Cordillera ground warbler and Sierra Madre ground warbler. The specific epithet is from the name of the province Sorsogon in the Bicol Region of the Philippines where the species was first discovered. It was initially believed to belong to the Old World babblers family Timaliidae and given the English name "grey-banded babbler" but this was changed to "Bicol ground warbler" when its taxonomic position was better understood. It is now placed in the genus Robsonius that was introduced by the English ornithologist Nigel J. Collar in 2006.
分类信息
- 学名
- Robsonius sorsogonensis
- 命名信息
- (Rand & Rabor, 1967)
- 目
- Passeriformes
- 科
- Locustellidae
- 属
- Robsonius
分布与栖息地
It is found in lowland moist dipterocarp forest in primary forest, secondary forest and forest edge up to 1,000 m. It is typically found among limestone outcrops, bamboo and mossy rocks.<p>IUCN has assessed this bird as near threatened. The population size has not been quantified, but it is plausible that the species numbers less than 10,000 mature individuals. This species' main threat is habitat loss with wholesale clearance of forest habitats as a result of logging, agricultural conversion and mining activities occurring within the range.<p>It is found in two protected areas in Quezon Protected Landscape and Mount Isarog National Park; however, like most areas in the Philippines protection is lax.<p>Conservation actions proposed include assessing the population size and establishing a monitoring programme to quantify trends; establishing its ability to persist in degraded habitats; identifying and assessing threats; and ensuring that the Quezon Protected Landscape and Mount Isarog National Park are more effectively protected.
- 迁徙
- Resident species
保护状况
- 种群趋势
- declining
照片
分布
其他鸟类
Littoral Rock-Thrush
Monticola imerina
Chunky, mid-sized robin-like bird. Males are pale gray and orange, while females are gray-brown. Madagascar endemic that is found in coastal spiny forest and scrub in the southwest. Perches up conspicuously. Song is a variable mix of thin whistles and raspy notes. Paler than Forest Rock-Thrush, with little or no overlap in range. Female similar to female Madagascar Magpie-Robin, but smaller and grayer, without white patch in the wing.
Pangani Longclaw
Macronyx aurantiigula
A large and relatively colorful member of the pipit family with a black necklace, a yellow-orange throat, a yellow breast, and whitish sides with long streaks. The white corners of the dark tail are conspicuous during its weak, fluttering flight. Found in grassland with some bushes and trees. Similar to Yellow-throated Longclaw, though there is only minor overlap in range; orange-throated birds are easily identified, but some individuals have a yellow throat, and these can be separated by their paler and much more heavily streaked flanks. Brownish immatures can be confused with pipits, but are larger and more robust. Not very vocal, but gives a high-pitched whistle and a simple song of doubled phrases.
Bank Swallow
Riparia riparia
Small and compact swallow, with quick flicking wingbeats. Brown above and white below, with a contrasting dark chest band. Note the relatively long, notched tail and narrow, pointed wings. Breeds in colonies; builds nest by tunneling into sandbanks. Can be seen over any open habitat including fields, marshes, and ponds, often in mixed flocks with other species of swallows. Compare with other small brownish swallows where overlaps occur in its extensive global range.
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