Standard-winged Nightjar

Caprimulgus longipennis

Females and non-breeding males are ordinary-looking, fairly plain nightjars, but breeding males have absurd “standards” growing out of the middle of their wings. In flight, they give the impression of a nightjar being chased by two bats. Found in savanna, broadleaf woodland, forest clearings, and open fields. The call is a very high-pitched and insect-like series of “tit” notes. Female and non-breeding male distinguished from most other nightjars by their lack of white in the wings and tail. They are very similar to female and non-breeding male Pennant-winged Nightjar, but are smaller.

识别特征

The adult male has a bizarre and unusual wing ornament during the breeding season which consists of a broad central flight feather on each wing elongated to 38 centimetres (15 in), much longer than the bird's body. 20 centimetres (7.9 in) or more of this is bare shaft. In normal flight, these feathers trail behind, but in display flight they are raised vertically like standards. Outside the breeding season, there are no plumage distinctions between the male and female.<p>When roosting on the ground during the day, this medium-sized (20–23 centimetres (7.9–9.1 in) long) nightjar is mainly variegated grey, with a browner collar. It is a shadowy form with easy, silent moth-like flight; this nightjar is relatively short-tailed, and lacks white in the wings or tail. The song is a churring trill.

分类信息

学名
Caprimulgus longipennis
命名信息
Shaw, 1796
Caprimulgiformes
Caprimulgidae
Caprimulgus

分布与栖息地

It is a resident breeder in Africa from Senegal east to Ethiopia. It is found in dry savannah habitats, with some scrub.

迁徙
Complete migrants

行为

Like other nightjars, the standard-winged nightjar feeds on insects in flight, the huge gape opening wide for moths and beetles. It flies at dusk, most often at sundown, and can sometimes be seen with flying foxes.<p>No nest is made; the two elongated and elliptical eggs are placed upon the bare ground.

保护状况

种群趋势
stable

照片

分布

鸟叫声

其他鸟类

Black-and-red Broadbill

Black-and-red Broadbill

Cymbirhynchus macrorhynchos

Utterly unmistakable inhabitant of waterside and riverine lowland evergreen forests, mangroves, and plantations. Midnight black with long white slashes on each wing, wine-red underparts, and a black chinstrap. Bulbous bill is glowingly powder-blue with warm tinges of orange and greenish-yellow. During the breeding season, the pendulous nests of this species can be quite obvious, hanging over forested waterways. Voice is nasal and generally unpleasant-sounding, consisting of odd low mechanical rasps.

Black Wood-Pigeon

Black Wood-Pigeon

Columba janthina

The largest pigeon in the region, with dark purplish plumage except for metallic green around the neck. Generally uncommon endemic of islands off Japan, and to a lesser extent South Korea and Taiwan. Occurs in mature broadleaf forests, where it forages on the ground or in canopy. Also favors pines, especially in the Ryukyu Islands. Rustles about loudly when feeding. Deep call and slow moaning song may recall the everyday Rock Pigeon.

Mindoro Cuckooshrike

Mindoro Cuckooshrike

Coracina mindorensis

Sleek but sturdy gray bird with fierce pale eyes, endemic to the west-central Philippine islands of Mindoro, Libagao, and Tablas. Male is uniform overall, but darker on the tail, wingtips, and between the eye and bill. Female is similar, but has faint barring on the undertail. Inhabits lowland and foothill forest and forest edge, where forages at middle and upper levels, sometimes associating with other species. Calls are scratchy; often gives a doubled, rather high-pitched “whee-wheet!” Formerly treated as part of a more broadly-defined “Bar-bellied Cuckooshrike”.

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