The Kango also known as the Batchua and Mbuti-Sua, are an Mbuti

Mbuti

Mbuti or Bambuti are one of several indigenous pygmy groups in the Congo region of Africa. Their languages belong to the Central Sudanic and also to Bantu languages.-Overview:...

 pygmy

Pygmy

Pygmy is a term used for various ethnic groups worldwide whose average height is unusually short; anthropologists define pygmy as any group whose adult men grow to less than 150 cm in average height. A member of a slightly taller group is termed "pygmoid." The best known pygmies are the Aka,...

 people of the Ituri forest. They speak a Bantu

Bantu languages

The Bantu languages constitute a traditional sub-branch of the Niger–Congo languages. There are about 250 Bantu languages by the criterion of mutual intelligibility, though the distinction between language and dialect is often unclear, and Ethnologue counts 535 languages...

 language, Bila, apparently in two dialects, northern Sua and southern Kango.

The are in a patron–vassal relationship with several Bantu-speaking peoples, the Bila, Budu

Budu people

The Budu people are a Bantu people living in the Wamba Territory in the Orientale Province of the Democratic Republic of the Congo. They speak the Budu language.-Location:...

, Ndaka

Ndaka people

The Ndaka people are an ethnic group of the northwestern Democratic Republic of the Congo, many of whom live in the the Mambasa Territory of the Ituri Province.All young Ndaka men had to be initiated to be become full adult members of the tribe....

, Bombo, Liko, and Baali; two Sudanic peoples, the Lese and Luumbi, and the Ubangian Mayogo.

They may be the Wochua

Wochua

The Wochua was the endonym of a pygmy people of the forests of the Democratic Republic of the Congo, south of the Welle River. They were first described in the Western world in 1880–1883 by Wilhelm Junker...

people described in the 19th century.