World Bird List

Species factsheet
Tullberg's Woodpecker (Campethera tullbergi)

Order: Campethera tullbergi
Family: Woodpeckers (Picidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
tullbergi se Nigeria, w Cameroon, Bioko I. (Gulf of Guinea)
taeniolaema e DR Congo top w Kenya and w Tanzania
hausburgi e and c Kenya and n Tanzania