Yambuya, Aruwimi River, DRCongo.
Commonly treated as conspecific with D. blissetti and D. chalybea, but differs from latter in characters given under that species. Differs from former in its marginally larger size (effect size for wing 1.28, score 1); darker and much narrower chestnut moustachial patch (3); much lower edge to dark green throat and breast (2); and song a repeated single or double note vs a series of short notes at same pitch (3) and at slightly higher frequency (3800–4500 Hz vs 3500–3800 Hz) (1)#R. This split supported by genetic evidence#R. Monotypic.
E DRCongo (Uele, Kivu), Rwanda and Burundi E to W Kenya (Kakamega and Nandi Forests) and NW Tanzania (Bukoba area); also S South Sudan (Lotti Forest).
Food and feeding
Status and conservation
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