(Black-Headed) Mountain Greenbul - Andropadus nigriceps - Zwartkapbuulbuul
Sometimes considered as a subspecies of Western Mountain Greenbul - Andropadus tephrolaemus - Grijskeelbuulbuul.
Subspecies of this species are sometimes threated as separate species,
with the race usambarae splitted into Usambara Greenbul - Andropadus usambarae - Usambarabuulbuul.
For those interested in this subject, more information can be found in the following article:
A nuclear DNA phylogeny and proposed taxonomic revision of African greenbuls, by Johansson, 2007.
Of this species there are no Zoo Photo's available.