P. L. Sclater, 1858,
Río Napo, Ecuador.
Genetic data#R suggest that this species is closest to a group consisting of S. albescens, S. frontalis, S. azarae and S. courseni. Sometimes considered perhaps to be sister-species of S. albescens, and previously regarded as conspecific; proposed race S. albescens pullata is actually a synonym of nominate race of present species. Larger birds with much darker underparts, found in Huallaga and Ucayali basins of Peru, appear to represent an undescribed race. Two subspecies recognized.
Food and feeding
Status and conservation
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