Image is shown at the African Bird Club link:
http://www.birdexplorers.com/afbid/birdspecies.php?func=view&slideno=1&af_bs_id=1299
Central Africa: belt across C Angola, S and E DR Congo, N Zambia, W Tanzania then north to S Sudan;
Eastern Africa: W Kenya - S Malawi in narrow belt
Forest and dense woodland
Resident
Cabanis's greenbul (Phyllastrephus cabanisi), also known as Cabanis's bulbul, is a species of songbird in the bulbul family, Pycnonotidae. It is found in east-central and south-central Africa. Its natural habitats are subtropical or tropical dry forest, subtropical or tropical moist lowland forest, subtropical or tropical moist montane forest, and subtropical or tropical moist shrubland.
Cabanis's greenbul was originally described in the genus Criniger. The common name and Latin binomial commemorates the German ornithologist Jean Louis Cabanis.[2] Formerly, some authorities considered the placid greenbul to be a subspecies of Cabanis's greenbul, or Cabanis's greenbul to be a subspecies of Fischer's greenbul.
Two subspecies are recognized:[3]
Cabanis's greenbul (Phyllastrephus cabanisi), also known as Cabanis's bulbul, is a species of songbird in the bulbul family, Pycnonotidae. It is found in east-central and south-central Africa. Its natural habitats are subtropical or tropical dry forest, subtropical or tropical moist lowland forest, subtropical or tropical moist montane forest, and subtropical or tropical moist shrubland.