Habits
Often gregarious around flowering plants and trees. Also feeds alone and in pairs, and joins mixed flocks.
Food
Mainly nectar, supplemented with insects.
Voice
Song is a 3-4 second fast and rolling rattle of high-pitched 'tsi' notes, often preceeded by a few introductory double 'tsp-tee' notes. Call is a sharp 'chip', 'tsk' or 'pzit'.
Similar Species
Male similar to Regal Sunbird (Cinnyris regius) of the Albertine Rift, but has duller yellow-olive flanks and vent, rather than red vent. Female very similar to Moreau's Sunbird (Cinnyris moreaui) and Nectarinia fuelleborni. Distinguished from these species by range and voice.
References
See References.