Tsavo Sunbird occurs in Somalia, eastern Kenya, and northeastern Tanzania. Males are blue-green and black, while females are mainly gray-brown.
Males have blue-green upperparts, a black lower breast and belly, and may show a maroon band across the upper breast. Females are gray-brown above, with a white eyebrow and pale underparts.
The profile lists dry scrub, shrubland, and freshwater habitats; Oiseaux.net classifies its feeding niche as nectarivorous.
An extinction-risk assessment has not been added yet.