African Black Duck

Anas sparsa

A chocolate-brown duck with unmarked underparts, a pale-pink-and-black bill, orange legs, and white spots on the back and rump. A secretive and uncommon resident, preferring well-wooded, fast-flowing rivers but also visiting ponds. It forages mainly at dawn and dusk, dabbling for insects and plant matter. Differentiated from the similar Yellow-billed Duck by darker coloration, shorter neck, and dark, not vivid yellow, bill.

识别特征

The African black duck is a black duck with pronounced white marks on its back, a dark bill, and orange legs and feet. A purpish-blue speculum is often visible, especially in flight. It lives in central and southern Africa. It is also known as the black river duck, or (A. s. leucostigma) West African black duck or Ethiopian black duck. It is a medium-sized duck, with a length of 48–57 cm (19–22 in). The male is larger than the female.

分类信息

学名
Anas sparsa
命名信息
Eyton, 1838
Anseriformes
Anatidae
Anas

分布与栖息地

The African black duck is mainly found in eastern and southern sub-Saharan Africa from South Africa north to South Sudan and Ethiopia with outlying populations in western equatorial Africa, in southeast Nigeria, Cameroon and Gabon.

迁徙
Resident species

行为

Though it likes to stay in rivers and streams during the day it prefers large open waters during the night. This duck likes water in the wooded hills of Africa and hides its nest near running water. Also the African black duck makes its cup shaped nest of driftwood and matted grass. Though it builds its nest near water it is always above flood level and on the ground.

保护状况

种群趋势
declining

照片

分布

鸟叫声

其他鸟类

Chad Firefinch

Chad Firefinch

Lagonosticta umbrinodorsalis

A small brown and reddish waxbill with a blue-gray bill, a mostly gray head, and black under the tail. There are a few white spots along the shoulder. Found in dry, rocky habitat with grass and bushes. Usually in pairs or small groups. Very similar to African Firefinch, but separated by range and habitat. Also similar to Black-bellied Firefinch, but has less extensive black on the belly, and males further separated by the gray patch on the head. Calls include soft “teew” whistles, “tep” notes, and “pit-pit-pit” calls. The song is a series of identical whistled notes. 

Nyanza Swift

Nyanza Swift

Apus niansae

A brownish, mid-sized swift with a powerful, direct flight and contrasting paler patches along the trailing edges of the wings, adjacent to the body. Can be seen in flight over any habitat, but most often in dry and rocky areas. Very similar to several other swifts, and identification is tricky without a very good view or photo. Browner than African Black Swift. Pale patch in the wings separates it from Common and Forbes-Watson’s Swifts. The call is a high-pitched, descending trill.

South Moluccan Pitta

South Moluccan Pitta

Erythropitta rubrinucha

An unmistakable plump, short-tailed, long-legged forest bird with a red belly. A spectacular species displaying a broad iridescent blue chest band, a dark purplish-glossed head with blue cheek markings, a reddish nape, and moss-green upperparts. Found in forested lowlands and foothills and within bamboo thickets. Usually seen singly, most often either foraging on the forest floor or calling from low understory branches. Confined to the islands of Buru and Seram. Gives a distinctive soft, quivering two-part whistle: “waaaaaaaoop-aaaaaaww.” First part ascends, and the second is a mournful, descending whistle.

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