The Bwa languages (Bwamu, Bomu) are a branch of the Gur languages spoken by over half a million Bwa people of Burkina Faso and Mali.
The Bwa people, and their languages, are one of several called Bobo in Bambara. The Bwa are distinguished as the Bobo Wule/Oule "Red Bobo". The Bwa languages are not mutually intelligible; Ethnologue calculates that the intelligibility of the Ouarkoye and Cwi is 30%, though other varieties are closer.
Languages Bwamu (Ouarkoye) Láá Láá Bwamu Cwi Bwamu (Bwamu Twi) Bomu
References
Further reading
John and Carol Berthelette, Sociolinguistic Survey report for the Bwamu language, SIL International, 2001, page 82.
Gabriel Manessy, « Le bwamu et ses dialectes », in Bulletin de l'IFAN, série B: sciences humaines, 1961, number 23, pages|119-178.