Collared Crow
Corvus torquatus
By far the most distinctive crow of farmland, fields, and other open spaces: adults black with white hindneck connecting to white breast band. Superficially similar to adult Daurian Jackdaw, but the latter is more compact and smaller, with pale plumage extending through the belly. Call is a higher-pitched cawing than that of Carrion and Large-billed Crows.
识别特征
It is about 52–55 cm in length—the same size or slightly larger than the carrion crow (C. corone), with proportionately slightly longer wings, tail and bill. A sleek and handsome bird, it has glossy black plumage except for the back of the neck, upper back (mantle), and a broad band around the lower breast that is white. The bill, legs and feet are black.<p>It sometimes flies with its feet hanging down below the body in a characteristically "lazy" way.<p>The voice is a loud "kaaar" repeated several times with other slight variations on it to suit the occasion. It also like many other corvids, utters strange clipping and clicking sounds during its head bowing display to another bird.
分类信息
- 学名
- Corvus torquatus
- 命名信息
- Lesson, RP, 1831
- 目
- Passeriformes
- 科
- Corvidae
- 属
- Corvus
分布与栖息地
The range of this species is essentially China, covering large areas of the country though not further north than Beijing. It occurs in plains and low lying river valleys in fairly open country and cultivated regions and is a common sight in paddy fields. It tends to avoid large towns and cities and is predominantly a rural species.<p>Food is sought mainly on the ground where a large range of items are taken, such as insects, mollusks and other invertebrates (even from shallow water), grains, especially rice and it also searches among refuse for suitable food items left by humans. It appears to take less carrion than other species but will if the opportunity arises, and will also take eggs and nestlings.<p>The nest is usually in a tree and is plastered with mud. There are usually 3–4 eggs laid.<p>It was formerly classified as a Species of Least Concern by the IUCN. But new research has shown it to be rarer than it was believed. It was uplisted to Near Threatened status in 2008 and Vulnerable in 2018.
- 迁徙
- Resident species
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Brown Firefinch
Lagonosticta nitidula
This is the darkest and dullest firefinch, the only species without a red or pink rump. Both sexes have red in the bill. Males have an extensive red patch on the face, and females just a bit of red. Found in thickets, woodland, and riparian forest adjacent to wetlands. Quiet and inconspicuous. Usually in pairs or small groups. The song is a chattering mix of various types of notes, and calls include soft “tip” notes.
Black-throated Antshrike
Frederickena viridis
Large, uncommon antbird of rainforest edge. Shy and difficult to see. Male is uniformly dark; female told by solid rufous cap and back contrasting with barred underparts. Note fierce expression and large, heavy bill. Often in pairs around old treefall gaps, forest edge, and other places with dense understory. Feeds on insects and occasionally follows army ant swarms. Female superficially similar to Fasciated Antshrike but much larger and unbarred above. Song is a slow series of whistles, similar to some calls of Black Nunbird but repeated more regularly.
Clapperton's Spurfowl
Pternistis clappertoni
A medium-sized, pale francolin with large patches of red bare skin around the eyes. Heavily marked with black and pale buff on the back, neck, and underparts. Found locally in a variety of savanna habitats and adjacent agricultural areas, often in pairs or small groups. Separated from most other francolins by the red facial skin. Similar to Harwood’s Francolin, but much paler overall, with a mostly black rather than red bill. The call is a rough “kreeya” that is repeated several times.
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