About the Retz's Helmetshrike
Retz's helmetshrike (Prionops retzii) is a species of bird in the helmetshrike family Vangidae, formerly usually included in the Malaconotidae. Four subspecies are recognized: Prionops retzii nigricans (Neumann, 1899) – south central Africa
Prionops retzii graculinus Cabanis, 1868 – East Africa Prionops retzii retzii Wahlberg, 1856 – northern parts of southern Africa Prionops retzii tricolor G.R. Gray, 1864 – eastern and southeastern Africa It is found in Angola, Botswana, DRC, Eswatini, Kenya, Malawi, Mozambique, Namibia, Somalia, South Africa, Tanzania, Zambia, and Zimbabwe. Its natural habitats are subtropical or tropical dry forests, subtropical or tropical mangrove forests, and subtropical or tropical moist shrubland.
(Retz's helmetshrike = ) Red-billed helmetshrike Prionops retzii - Species text in The Atlas of Southern African Birds. Wikipedia →