White-rumped Swifts visit South Africa from equatorial Africa during our warmer months (August to May, though a few stay through the winter). They’re usually seen on the wing, catching flying insects over open country, often close to water and commonly in towns and cities. Usually seen in small flocks of around a dozen, they migrate in larger groups of up to a hundred.
Monogamous pairs of White-rumped Swifts often breed in colonies throughout spring and summer, usually in nests hijacked from other kinds of swifts and swallows. Clutches consist of 1-3 eggs and are incubated for about 3 weeks. Compared to many similarly-sized birds the chicks develop slowly and only fledge shortly before reaching two months old. Adult White-rumped Swifts measure 16cm long and weigh around 24g.