Black-backed puffback

The black-backed puffback (Dryoscopus cubla) is a species of passerine bird in the family Malaconotidae. They are common to fairly common sedentary bushshrikes in various wooded habitats in Africa south of the equator. They restlessly move about singly, in pairs or family groups, and generally frequent tree canopies. Like others of its genus, the males puff out the loose rump and lower back feathers in display, to assume a remarkable ball-like appearance. They draw attention to themselves by their varied repertoire of whistling, clicking and rasping sounds. Their specific name cubla, originated with Francois Levaillant, who derived it from a native southern African name, where the "c" is an onomatopoeic click sound. None of the other five puffback species occur in southern Africa.

They measure about 17 cm in length, and the sexes are similar though easily distinguishable. Adult males have the upperparts deep blue-black with a slight luster. The black cap subtends the red eye, the upperpart plumage is black-and-white, and the underparts pure white. Females have a black loral stripe and white supraloral feathering, with the ear coverts pale and the crown not solidly black. They also have greyer backs than males, and grey to buffy tones to the white plumage tracts. Immature birds resemble females, but have brownish bills and brown irides, while the upperparts and flanks are still greyer, and the underparts and edges of the wing feathers are yet more buffy. Intraspecific variation is clinal. Range, iris colour, wing markings and the female plumage assist in separating it from other puffback species.