Oleaginous Hemispingus Sphenopsis frontalis

A study in dull yellow, this nondescript tanager lacks any distinctive field marks. The slightly brighter yellow eyebrow is only present in some regions, and might suggest something like a Citrine Warbler, but note the stouter bill and slightly chunkier shape. Usually found in pairs or small groups, often following mixed-species flocks through the understory and middle levels of foothill and subtropical forest from 1,500–2,500 m.