Black Cuckoo

Cuculus clamosus

This large cuckoo has two morphs: (1) entirely black except for white tips to the long tail and sometimes limited white barring elsewhere, and (2) dark-backed with a rufous chest and black-and-white-barred underparts. The latter are more frequently found in West Central Africa. It has a characteristically swerving flight. It is resident and migrant, preferring thicker woodland and forest, It produces a mournful, three-noted call “I’m so saaaaad” call, the last note rising. Similar dark-morph Jacobin and Levaillant’s cuckoos differ from Black Cuckoo in having crests and strong white flashes in the wings.

识别特征

The black cuckoo is a medium-sized cuckoo. The sexes are similar, the plumage varying by subspecies; Cuculus clamosus clamosus has upper parts black glossed with green, slatey-grey wings and black tail tipped with white and sometimes with the outer feathers barred or spotted with white or buff; Cuculus clamosus gabonensis is mostly black with a red throat and black and white barring on the belly.

分类信息

学名
Cuculus clamosus
命名信息
Latham, 1801
Cuculiformes
Cuculidae
Cuculus

分布与栖息地

The subspecies Cuculus clamosus gabonensis is a resident in Central Africa, whereas the Southern African subspecies Cuculus clamosus clamosus is migratory, breeding in Southern Africa in September to December, then moving in March to Central, Eastern and West Africa. The range of this species extends from Liberia to Ethiopia in the east and Angola and South Africa. It is a woodland bird but avoids the interior of dense forests, preferring acacia woodland, thickets, riverside woodland, plantations and trees around villages.

迁徙
Complete migrants

行为

The black cuckoo feeds mainly on hairy caterpillars but also consumes termites and ants, including winged ones caught in flight, beetles, grasshoppers and other insects, as well as birds' eggs and nestlings.<p>The black cuckoo is a brood parasite. Its main hosts are bushshrikes, particularly the tropical boubou and crimson-breasted shrike. When parasitising the boubou, the eggs hatch after about fourteen days, three days before the boubou's eggs. The cuckoo chick evicts other eggs and nestlings usually within thirty hours of hatching. It is fledged in about sixteen days and leaves the nest a few days later. The foster parents continue to feed it for another three weeks.

保护状况

种群趋势
stable

照片

分布

鸟叫声

其他鸟类

Forest Swallow

Forest Swallow

Atronanus fuliginosus

A unique dark swallow of lowland rainforest, less commonly seen at forest edge and in montane foothills. The only swallow that can be found flying bat-like under the canopy in closed forest. Overall a dark sooty brown, with some birds, especially adult males, having brighter rufous throats. Small and compact with a short, mostly squared tail. Often found nesting under boulders, in caves, or in similar locations in the rainforest. Very similar to Square-tailed Sawwing, and some individuals are best left unidentified. Note Forest Swallow’s unique, bat-like flight, and in good light, its more brownish plumage and sometimes more rufous throat. Despite its visual similarity to sawwings, this species is most closely related to house-martins. Voice is a short, buzzy call note.

Paria Brushfinch

Paria Brushfinch

Arremon phygas

Range-restricted striking sparrow with black head and gray eyebrow. Back and tail olive-yellow, underparts gray; black band across chest. Found alone or in pairs or family groups on ground or at mid-level in dense understory, second growth vegetation at forest edges, and coffee plantations. Song and calls are repetitive and very high-pitched. No similar species in range. Endemic to the Turimiquire and Paria regions of northeastern Venezuela.

Striated Bulbul

Striated Bulbul

Alcurus striatus

A well-marked bulbul with a bushy crest. Olive-green above with a pale yellow throat and extensive white streaks on a dark breast and pale belly. A foothill and submontane specialist found in broadleaf forests, both evergreen and deciduous. Forages in the forest canopy, often in the company of other bulbuls. Somewhat similar to Mountain Bulbul, but has a bushier, more erect crest, darker upperparts, and obvious streaking on the underparts. Generally not very vocal; gives various chirps, warbles, and chips, often strung together into a loose “song” with short, distinct phrases.

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