Forms a superspecies with Grey-olive Greenbul (Phyllastrephus cerviniventris). References See References. Files: More Information BirdLife International For more information about the Pale-olive Greenbul see... BirdLife International Species Factsheet. Articles about the Pale-olive Greenbul If you would like to read any articles about the Pale-olive Greenbul... Show Articles (0) No Pictures of Pale-olive Greenbul If Birdpedia has no pictures of Pale-olive Greenbul or you would like to see more, then try the following... From BING (0) No Videos of Pale-olive Greenbul If Birdpedia has no videos of Pale-olive Greenbul or you would like to see more, then try the following.. From BING (0)