Previously considered conspecific with A. nigriceps, but differs from A. n. nigriceps in its lack of white streaks on ear-coverts (2); paler crown (2); larger size (effect size for tail 2.2, score 2); and different song (as given under A. fusciceps; at least 2)#R; from A. n. kikuyuensis and A. n. usambarae in its lack of white streaks on ear-coverts (2); larger size (effect size for tail vs longest-tailed A. n. kikuyuensis 0.5, score 1); and possession of one vs two song types (4). Differs from A. fusciceps in its shorter bill (effect size −0.37, score 1); longer wing (effect size 0.37, score 1); yellow-green throat (3); darker crown (1); brighter upperparts (1). From A. neumanni in its smaller size (effect size for wing −2.5, score 2); yellow-green throat (3); partial white eyering vs none (3). Monotypic.
EC & S Tanzania (Kiboriani and Nguru Mts S to Iringa, Njombe and Songea).
Food and feeding
Status and conservation
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