The sombre greenbul is a member of the bulbul family of passerine birds. It is a resident breeder in coastal bush, evergreen forest and dry shrub land in eastern and southern Africa. It is the only member of the genus Andropadus.

True thrushes are medium-sized mostly insectivorous or omnivorous birds in the genus Turdus of the wider thrush family, Turdidae. The genus name Turdus is Latin for "thrush". The term "thrush" is used for many other birds of the family Turdidae as well as for a number of species belonging to several other families.