Bila language
Bila, or Forest Bira, is a Bantu language spoken in the Mambasa Territory of the Democratic Republic of Congo. It is also spoken by the Mbuti Pygmies who live in that area. Pygmy groups to the west include the Kango and Sua. Other Mbuti speak Central Sudanic languages. The Kango and Sua speak distinct dialects, but not enough to impair mutual intelligibility with their farming Bila patrons.
Maho lists Ibutu as a distinct language.