The Cape sugarbird (Promerops cafer) is one of the eight bird species endemic to the Fynbos biome of the Western Cape and Eastern Cape provinces of South Africa.
The Cape sugarbird is a grey-brown bird that is easily recognisable by a spot of yellow under its tail and the very long tail feathers present in males. The male is 34–44 cm long, and the shorter-tailed, shorter-billed, and paler breasted female 25–29 cm long. Another characteristic of the Cape sugarbird is the sound it makes when it flies. The main flight feathers are arranged in such a way that when the bird beats its wings, a frrt-frrt sound is made with the intention of attracting females.