World Bird List

Species factsheet
Brown-rumped Bunting (Emberiza affinis)

Order: Emberiza affinis
Family: Buntings (Emberizidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
nigeriae Senegal and Gambia to Nigeria and n Cameroon
vulpecula c Cameroon, s Chad and Central African Republic
affinis s Sudan, ne DR Congo and nw Uganda
omoensis s Ethiopia