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distribution in Sudan
...hill cultivators who have tended to be isolated from adjacent peoples in the Nile valley. They speak various Eastern Sudanic languages, among them Midobi and Birked, that are collectively known as Hill Nubian. Another southern group is the Dinka, who live near the border with South Sudan. The capital, Khartoum, in the centre of Sudan, is also home to non-Muslim populations.
subdivision of Nubian languages
...of languages spoken in Sudan and southern Egypt, chiefly along the banks of the Nile River (where Nobiin and Kenzi [Kenuzi] are spoken) but also in enclaves in the Nuba Hills of southern Sudan (Hill Nubian) and in Darfur (where Birked [Birgid] and Midob [Midobi] are spoken). These languages are now considered to be a part of the Nilo-Saharan language family.