A medium-sized sunbird in which males are colorful, with green upperparts and breast and a red belly, while females are drab olive-brown. Found in western Albertine Rift montane forest, heath, and bamboo, often along streams. The male is distinctive, separated from all similar sunbirds by the red underparts. The female is very similar to female Northern Double-collared Sunbird, but has a longer bill and is paler and more yellowish overall. The female is separated from female Regal Sunbird by its pale eye-stripe.The calls are poorly known, but include a doubled “schick” note.