World Bird List

Species factsheet
Olive Woodpecker (Dendropicos griseocephalus)

Order: Dendropicos griseocephalus
Family: Woodpeckers (Picidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
ruwenzori Angola, n Zambia, n Malawi and c Tanzania to se DR Congo and sw Uganda.
kilimensis n and e Tanzania
griseocephalus s Mozambique to South Africa