### **African Black Swift (*Apus barbatus*)**
Identification
A master of the high-altitude winds, the African Black Swift is a large, powerful aerialist. At first glance, it appears entirely silhouetted against the sky, but a close look through binoculars reveals a rich, sooty-black plumage rather than the chocolate-brown of the Common Swift (*Apus apus*). Look specifically for the **delicate white scaling** on the underparts—fine pale fringes on the feathers that give it a "frosted" appearance. Its throat features a prominent, though sometimes streaky, pale patch. In flight, its wings are long and scimitar-shaped, and its tail is deeply forked, though often held closed in a sharp point.
Habitat & Range
This species is a specialist of the vertical world. It is found across Sub-Saharan Africa, with strongholds in the Ethiopian Highlands and the Drakensberg of South Africa. You’ll find them screaming over montane grasslands, deep rocky gorges, and coastal cliffs. While they forage over various terrains, they are tethered to high-elevation precipices and crags where they find the inaccessible crevices required for nesting.
Behaviour
Gregarious and raucous, these swifts are rarely silent. You will likely hear their piercing, trilling "sweee-reee" calls before you see them. They are intensely social, often seen in "screaming parties"—groups that tear through the air at breakneck speeds to defend nesting territories or simply socialise. On the wing, they are incredibly stable even in turbulent mountain updrafts, banking with effortless grace. They are colonial breeders, gluing their nests of grass and feathers to rock faces using their own viscous saliva.
Diet
Like all swifts, *Apus barbatus* is an obligate insectivore, feeding exclusively on "aerial plankton." They cruise the skies with their wide gapes open, vacuuming up flying ants, beetles, midges, and even small spiders drifting on silken threads. They are known to follow weather fronts where rising air concentrates high densities of insects.
Fascinating Fact
The African Black Swift is a true creature of the ether; they are capable of **sleeping while flying**. Through a process called unihemispheric slow-wave sleep, they shut down half their brain at a time while staying aloft, potentially remaining airborne for months at a time without ever touching solid ground.