The Asian brown flycatcher (Muscicapa dauurica) is a small passerine bird in the flycatcher family Muscicapidae. It is migratory and winters in tropical southern Asia from southern India and Sri Lanka east to Borneo and Labuan Island. This species is 13 cm (5.1 in) long, including the cocked tail. It is similar in shape to the larger spotted flycatcher, but is relatively longer-tailed. The dark bill is relatively large and broad-based. The adult has grey-brown upperparts, which become greyer as the plumage ages, and whitish underparts with brown-tinged flanks. Young birds have scaly brown upperparts, head and breast. The Asian brown flycatcher is an extremely rare vagrant to Western Europe. Records have come from Britain, Denmark, and Sweden, and in addition, there are unproven claims from Ireland, Faeroe, and Norway.