Cayenne, French Guiana.
Has been regarded as conspecific with C. phaeocephalus (which see). NE nominate race (Guianas centre of endemism) the most distinctive morphologically, but part-matched by E race griseolateralis S of Amazon (Tapajós centre); adjacent interpositus (Rondônia centre) has different head pattern but shares grey belly with previous two; races modulator (Inambari centre), salvini (Napo centre) and transfluvialis (Imeri centre) resemble interpositus but have tawny underparts, each differing rather subtly from the other; songs of all races show moderate degrees of divergence#R#R#R but variation considerable, hence exhaustive analysis needed if real distinctions to be demonstrated; nevertheless, each subspecies is genetically well marked#R#R, and further research may result in revised species limits. Races urbanoi and faroensis, recognized in HBW, have been proposed as synonyms as their diagnostic characters sit within the plumage variation of nominate#R; this view accepted here. Species name often emended to aradus but must remain invariable because from a local native language, not Latin. Six subspecies recognized.
Food and feeding
Status and conservation
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