The Ash-winged Antwren forages with mixed-species flocks in the canopy of mature Amazonian forest. Adult males are gray with a black cap and white wingbars; the reddish back and rump can be hidden by folded wings.
Adult males are gray from the head through the underparts, with a black cap and two white wingbars. The bright rufous back and rump may be hidden when the wings are folded. Females are duller and lack the black cap.
It forages in the canopy of mature Amazonian forest and joins mixed-species flocks. The account describes it as uncommon in this canopy habitat.
An extinction-risk assessment has not been added yet.