The brown-capped vireo (Vireo leucophrys) is a small passerine bird. It breeds in highlands from southern Mexico south to northwestern Bolivia. It is sometimes considered to be conspecific with the similar warbling vireo. The adult brown-capped vireo is 12-12.7 cm in length and weighs 12 g. It has olive-green upperparts and a brown crown. There is a brown line from the bill through the eyes, and a white supercilium. The face and throat are off-white, and the underparts are otherwise yellow with some olive on the flanks. Young birds are buff-brown above with a weaker supercilium.