Knob-billed Fruit-Dove
Ptilinopus insolitus
A unique fruit dove with a diagnostic combination of a large red knob above the bill, a large orange belly patch, and gray shoulder spots. Restricted to lowland forest, particularly secondary and degraded forest patches, where it often perches in the open but is deceptively well camouflaged. Could potentially be mistaken for Red-knobbed Imperial-Pigeon, but is much smaller, with a bright green body. Voice is little known, but sometimes gives a drawn-out, four-noted “whooOOoo-hu-ooo-huu.”
分类信息
The knob-billed fruit dove was originally described as Ptilopus insolitus by Hermann Schlegel in 1863 on the basis of specimens from New Ireland. The name of the genus was later emended to Ptilinopus. The generic name Ptilinopus is derived from the Ancient Greek words πτιλον (ptilon), meaning feather, and πους (pous), meaning foot. The specific name insolitus is from the Latin word insolitus, meaning strange. Knob-billed fruit dove is the official common name designated by the International Ornithologists' Union. Other common names for the species include red-knobbed fruit dove and Schlegel's fruit-dove.<p>The knob-billed fruit dove is closely related to the orange-bellied fruit dove, and these two species are thought to form a species group with the grey-headed and carunculated fruit doves. This group may also include the black-naped and dwarf fruit doves.<p>There are two recognised subspecies of the knob-billed fruit dove. Variation between subspecies may be clinal.
- 学名
- Ptilinopus insolitus
- 命名信息
- Schlegel, 1863
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Ptilinopus
分布与栖息地
- 迁徙
- Resident species
保护状况
- 种群趋势
- stable
照片
分布
其他鸟类
Black-breasted Barbet
Pogonornis rolleti
Large, mostly black barbet with a huge white bill. Note the black breast and the red, white, and black belly. Found locally in savanna, woodland, gardens, and secondary growth, often in the vicinity of figs and other fruiting trees. Usually in pairs or small groups. Gives rasping calls and a nasal yelping call. Somewhat similar to Bearded and Double-toothed Barbet, but easily separated by the black rather than red breast.
Principe Starling
Lamprotornis ornatus
A large, chunky, dark starling. In poor light, looks black, but good light reveals purple, green, blue, and copper iridescence. Most of the glossy coloration is on the upperparts, while the underparts are duller, appearing blackish with bronze highlights. Common in humid forest, plantations, and secondary habitats on the island of Principe. Usually in small flocks. Similar to Splendid Starling, but separated by the bronzy rather than purplish underparts. Gives a wide variety of scolding, rasping, squealing, and liquid notes.
Yellow-headed Warbler
Teretistris fernandinae
A gregarious resident of dense tangles and thickets in otherwise open habitats; not found in dense forest or mangroves. The gray body contrasts sharply with its yellow head, but note that some birds have yellow on the chest as well. Prothonotary Warblers are somewhat similar, but are mostly yellow below with a green (not gray) back. Pine Warblers have a green back, white wingbars, and are usually more extensively yellow below. Song is a series of raspy buzzy notes. Call notes similar to song, but are given singularly or without pattern.
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