Tiny warbler with a long bill and frequently cocked tail. Secretive, tending to stick to the brushy underlayer of hill and submontane forest. Often moves about solitarily, but can sometimes be found with mixed-species flocks, especially with small warblers and fulvettas. Green above and yellow below, with a pale gray throat. Somewhat resembles a Common or Dark-necked tailorbird, but only a fraction of the size, with a proportionally far longer bill, black eye-stripe, and bright orange forehead. Song is an extremely high-pitched tinkling series of whistled notes with an otherworldly quality. Calls include high descending trills and dry chittering.