African Palm Swift

Cypsiurus parvus

A very slender gray-brown swift with a long, deeply forked tail that is often held closed, making it look needle-like and pointed. The erratic flight pattern, with frequent direction changes and rapid wingbeats on long, scythe-shaped wings, is distinctive. Less gregarious than other swifts; usually found in pairs or small flocks, and association with other swallows and swifts is usually only fleeting. Forages over a wide variety of habitats with palms, including savanna, coastal scrub, towns, villages, cultivated areas, forest edge, and clearings, from sea level up to 1800 meters of elevation, preferring lowlands. Nests and roosts in palms and uses its tiny legs with hook-like claws to cling to the undersides of fronds. Gives a high-pitched, metallic “tre-tit-tit-tit-tit-tit-tit-tit” call, solitarily or in unison with others. Separated from other swifts by its longer and thinner tail.

识别特征

This 16 cm long species is mainly pale brown in colour. It has long swept-back wings that resemble a crescent or a boomerang. The body is slender, and the tail is long and deeply forked, although it is usually held closed. The call is a loud, shrill scream. Sexes are similar, and young birds differ mainly in their shorter tails. Palm swifts have very short legs which they use only for clinging to vertical surfaces, since swifts never settle voluntarily on the ground.

分类信息

学名
Cypsiurus parvus
命名信息
(Lichtenstein, MHC, 1823)
Apodiformes
Apodidae
Cypsiurus

分布与栖息地

The African palm swift is native to Angola, Benin, Botswana, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Congo, Democratic Republic of the Congo, Equatorial Guinea, Eritrea, Eswatini, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Kenya, Liberia, Malawi, Mali, Mauritania, Mayotte, Mozambique, Namibia, Niger, Nigeria, Rwanda, São Tomé and Príncipe, Saudi Arabia, Senegal, Sierra Leone, Somalia, South Africa, South Sudan, Sudan, Tanzania, Togo, Uganda, Yemen, Zambia and Zimbabwe.

迁徙
Resident species

行为

These swifts spend most of their lives in the air, living on the insects they catch in their beaks. Palm swifts often feed near the ground. They drink on the wing. It is a common resident breeder in tropical Africa. The down and feather nest is glued to the underside of a palm leaf with saliva, which is also used to secure the usually two eggs. This is a fast flying bird of open country, which is strongly associated with oil palms but is also found in wooded savannah, thornbush and cultivated land.

保护状况

种群趋势
rising

照片

鸟叫声

其他鸟类

Square-tailed Kite

Square-tailed Kite

Lophoictinia isura

Uncommon, inconspicuous raptor with a fairly small bill. Adult has a pale head and reddish underparts with black streaks on neck. Juvenile has a more reddish head with less streaking. In flight, tail has obvious square corners with a dark band at the base. Sails over forest woodland habitats just above the tree canopy, typically with little wing movement. Occurs singly or in pairs. At a distance, and particularly when heavily worn, take care to identify juvenile birds from Black Kite, which has more uniformly patterned plumage.

Blackcap Babbler

Blackcap Babbler

Turdoides reinwardtii

A mostly brownish babbler with a black head and a white eye. The underparts are pale in the west and become increasingly darker in the eastern part of the range. Found in moist woodland, dense savanna, scrub, gallery forest, forest edge, cultivated areas, and gardens. Almost always in groups, which feed by hopping across the ground. Similar in behavior, shape, size, and overall brown coloration to Brown Babbler, but easily separated by the black head and the lack of a contrastingly paler rump. Calls include a raspy babbling, nasal calls, and a dry clucking, all usually given by a whole group in chorus. 

White-browed Fantail

White-browed Fantail

Rhipidura aureola

Fantail with a broad white eyebrow, dark upperparts, and white underparts. Crown and ear-coverts black, contrasting with white eyebrows. Throat mottled black-and-white. Pair of wingbars formed by well-separated white teardrop-shaped spots. Female slightly paler with a browner head. Immature like adult, but has rufous tips to dark feathers of upperparts. Frequent song is a 4- to 7-note melodious whistling phrase that ascends and then sometimes descends or is left incomplete. Contact call is a harsh “switch-wich.” Inhabits dry, open wooded habitats, ranging from dry deciduous forest to scrubby agricultural edges.

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