Karen Hills, Tonghoo district, Myanmar.
Often treated as conspecific with S. castanea and S. cinnamoventris, but differs from castanea by its dirty-white throat grading through dull orange to mid-chestnut belly vs rich chestnut underparts (3); narrow greyish-white vs bold wide white ear-coverts (2); much narrower black eyestripe (2); more distinct undertail-covert pattern (ns); and considerably longer bill (allow 2); differs from cinnamoventris by same first three characters above (total 7) plus rather less distinct undertail-covert pattern (ns) and parapatric distribution, or at least foothill vs lowland habitat (1), meeting range of S. c. tonkinensis in NW Thailand, where the two separate altitudinally. Monotypic.
Myanmar S from Bhamo Hills (S in W to at least Mt Victoria and in E to Mt Mulayit), N & W Thailand (S in W to Kanchanaburi), C & S Laos lowlands (S at least from Vientiane), Cambodia and S Vietnam (C Annam).
Food and feeding
Status and conservation
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