The Southern Red-billed Hornbill is a southern African form within a red-billed hornbill complex. Compared with the Damaraland form, the study population had yellow eyes and grey facial feathers and used moister savanna woodland.
The studied southern form had yellow eyes and grey facial feathers relative to the Damaraland form.
In the comparison study, the southern form occupied moister savanna woodland than the Damaraland form.
An extinction-risk assessment has not been added yet.