Medium-sized sunbird in which males are colorful, green, yellow, and red, and females drab brownish. Found in and around Albertine Rift montane forest. The typical vocalizations include a harsh “seet” and a rapid, jumbled song. The male is distinctive, and is separated from all similar sunbirds by the yellow on the underparts. Females are very similar to female double-collared sunbirds, but are paler and more yellow-ish. Female separated from female Rockefeller’s Sunbird by its lack of a distinct pale eyestripe.