Visayan Rhabdornis
Rhabdornis rabori
A medium-sized bird of foothill and lower montane forest on Negros and Panay with an off-white throat, a white belly, brown upperparts, darker wings and tail, a black mask, a gray crown, and pale brown sides broadly streaked white. Often perches on dead branches. Similar to Stripe-sided Rhabdornis, but usually found at higher elevations, bill is shorter and thicker, and crown is gray rather than dark with white streaks. Voice includes high-pitched chips and squeals.
识别特征
EBird describes the bird as "A medium-sized bird of foothill and lower montane forest on Negros and Panay with an off-white throat, a white belly, brown upperparts, darker wings and tail, a black mask, a gray crown, and pale brown sides broadly streaked white. Often perches on dead branches. Similar to Stripe-sided Rhabdornis, but usually found at higher elevations, bill is shorter and thicker, and crown is gray rather than dark with white streaks. Voice includes high-pitched chips and squeals."
分类信息
- 学名
- Rhabdornis rabori
- 命名信息
- Rand, 1950
- 目
- Passeriformes
- 科
- Rhabdornithidae
- 属
- Rhabdornis
分布与栖息地
It lives in sub-montane and montane primary and secondary forest, forest edge and occasionally in clearings with an altitude range of 800 to 1,700 meters above sea level. It is often seen on the upper levels of the forest strata in the canopy.<p>IUCN Red List has assessed the Visayan rhabdornis as Least Concern, with an estimated population of 2,500 to 9,999 mature individuals. This bird's main threat is extensive habitat loss on Negros and Panay. Primary forests have been almost totally destroyed on Negros (where just 4% of any type of forest cover remained in 1988) and Panay (where 8% remained). Habitat degradation, through clearance for agriculture, timber and charcoal burning, continues to seriously threaten remaining fragments<p>Conservation actions proposed include surveys to determine the species' status in Negros and Panay and increased forest protection.
- 迁徙
- Resident species
保护状况
- 种群趋势
- stable
照片
分布
其他鸟类
Yellow-crowned Manakin
Heterocercus flavivertex
Fairly large, distinctive manakin. Males have olive backs and are rusty colored below, contrasting with a white throat. The yellow crown patch is usually concealed. Females have a gray throat and lack the yellow crown. Found in seasonally flooded forests and adjacent unflooded forests near rivers, including white sand forests. The call is a very thin ascending and descending whistle: “weeee-pítch-ooo.” Females are almost inseparable from females of Flame-crowned Manakin, but there is no range overlap.
Pied Cormorant
Phalacrocorax varius
Large black and white cormorant with a long ivory-colored bill. Note black "trousers" that help distinguish it from Little Pied Cormorant, which also has a shorter yellow bill. Common in marine environments, but also on inland waterways and large dams.
Dovekie
Alle alle
Tiny waterbird, the size of an elongated grapefruit. In nonbreeding plumage, they are black above and white below with a black stripe on the side of the neck and a white comma behind eye. Short, stout bill. Horizontal posture like a football floating on the water. Dives frequently when feeding. In winter, only likely to be seen from land following the passage of a storm, otherwise stays well offshore. Found singly or in flocks. Much smaller than guillemots or puffins, with fast wingbeats and low, twisting flight that recalls a flock of sandpipers. Breeds in large numbers in Greenland and Europe; rare at alcid breeding colonies in Alaska. Birds in breeding plumage have an all-black head and chest.
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