Green-backed Twinspot
Mandingoa nitidula
Small, chunky, dark green waxbill with bright white “twin spots” across the black belly. The male has a red face, and the female a yellowish one. Found in and around forest, where it prefers dense tangles and openings with seeding grass. Distinctive call is a short, high trill, often given in flight. The rarely heard song is a complex mix of many different call types. Superficially similar to Green-winged Pytilia, but smaller, prefers forest rather than savanna habitat, and does not have a red tail.
识别特征
The green-backed twinspot or green twinspot (Mandingoa nitidula) is an estrildid finch found in many parts of Sub-Saharan Africa. The IUCN has classified the species as being of least concern.
分类信息
Genus: Mandingoa; Family: Estrildidae; Order: Passeriformes.
- 学名
- Mandingoa nitidula
- 命名信息
- (Hartlaub, 1865)
- 目
- Passeriformes
- 科
- Estrildidae
- 属
- Mandingoa
分布与栖息地
The green-backed twinspot inhabits lowland moist forests of the tropical region. It may also be found in grassland and shrubland habitats.<p>Males are distinguished from females by their bright red facial feathers. Females have an olive-green face and darker (almost black) beak.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Buff-throated Warbler
Phylloscopus subaffinis
A very plain small warbler without wingbars. Olive-green above with a yellow-washed pale belly and a thin yellowish brow stripe that is strongest above the eye. Tickell’s and Alpine Leaf Warblers are extremely similar; note Buff-throated’s weaker brow pattern that considerably weakens before the eye, shorter bill with a darker tip, and duller buff underparts. Yellow-streaked Warbler can also be similar; again, compare Buff-throated’s shorter bill, as well as its dark grayish (instead of pale pink) legs, yellowish-buff non-contrasting throat, and more yellowish-green upperparts. Radde’s and Dusky Warblers can also be a source of confusion on migration and during the winter, but are visibly larger and bulkier, with distinctly tan-tinged brow stripes. Buff-throated breeds in montane forests up to the treeline, and descends into foothills and lowlands in the winter, where it prefers scrubby habitat. Song is a loud, vibrant “tee-tee-tee-tee-tee,” often with a quiet introductory note. Also gives quiet, somewhat cricket-like chirps and chirrups.
Ring-billed Gull
Larus delawarensis
Fairly small gull, common and widespread throughout most of North America. Breeding adults are white-headed with a bold black ring around the bill; nonbreeding adults have smudgy brown markings on the head. Note pale eye and yellow legs. Immatures are mottled brownish overall; note pink bill with black tip. Found along lakes, rivers, ponds, and beaches. More common inland than most other gull species, and quite fond of parking lots and urban areas. Often in flocks. Most similar to Short-billed Gull, but larger and larger-billed. Immatures of the two species are especially difficult to differentiate, but Ring-billed is usually more coarsely mottled.
Great-billed Hermit
Phaethornis malaris
Large hermit with an extremely long curved bill. Note the dark cheek bordered by pale eyebrow and mustache, and the elongated white central tail feathers. Fairly dull overall, with bronzy back and buffy or grayish belly. Occurs in lowlands across much of northern South America, typically below 1,000 m. Fairly common within terra firme forest where it stays low, quickly zipping around flower patches in the understory.
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