The Two-barred Warbler is a small leaf warbler with two wing-bars and a noticeable supercilium. It forages actively in mid-levels of trees and moves between breeding and wintering areas.
Compared with Arctic Warbler, it has a slightly shorter bill and darker legs. Its two wing-bars and supercilium are more prominent; the upperparts look greener in fresh plumage.
It forages actively in the middle levels of trees, alone or in small mixed flocks. It breeds in eastern Siberia and Mongolia and winters in Indochina.
An extinction-risk assessment has not been added yet.