The mountain fulvetta (Alcippe peracensis) is a 14 to 15.5 cm long species of bird in the family Leiothrichidae. It is found in Cambodia, Laos, Malaysia, Thailand, and Vietnam in subtropical or tropical moist montane forests.
The black-browed fulvetta, Alcippe grotei, is sometimes considered to be conspecific with mountain fulvetta, but the two forms differ in morphology and vocalisations, and are separated altitudinally. Black-browed fulvetta occurs primarily below 400 m, and mountain fulvetta above 900 m.
Both have a warm brown back and tail, whitish underparts, a grey face and a slate grey crown bordered below with a black line, but black-browed has brown flanks and a weaker white eyering. Mountain has a yi-yuii-uwee-uwee song, whereas black-browed's is yu-chi-chiwi-chuwoo, yu-uwit-ii-uwoo.
Two subspecies are recognised: A. p. annamensis Robinson, HC & Kloss, CB, 1919 – southern Laos (Bolaven Plateau), southern Annam, and adjacent Cochinchina A. p. peracensis Sharpe, RB, 1887 – highlands of Malay Peninsula (northern Perak to southern Selangor and Pahang)
References
Collar, N. J. & Robson C. 2007. Family Timaliidae (Babblers) pp. 70 – 291 in; del Hoyo, J., Elliott, A. & Christie, D.A. eds. Handbook of the Birds of the World, Vol. 12. Picathartes to Tits and Chickadees. Lynx Edicions, Barcelona. Robson, Craig Birds of Thailand. 2002. Princeton University Press, . Robson, Craig A Field Guide to the Birds of Thailand, 2004 Wildlife of Lao PDR: 1999 Status Report