Alternative name: Red-billed Helmetshrike
- Prionops retzii
Length 19-21 cm. Black body with brown back and wing coverts; vent and undertail coverts white.
Red bill, legs and eye wattle are missing or subdued in the juvenile.
Prionops retzii has four subspecies:
- P. r. graculinus
- P. r. tricolor
- P. r. nigricans
- P. r. retzii
Woodland and riparian forest.
Usually found in groups of 2-15, moving between trees in a cohesive group. Feeds on invertebrates found mainly on branches, trunks and twigs.
- Clements, JF. 2009. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2009. Ithaca: Cornell Univ. Press. ISBN 978-0801445019.
- Hockey, PAR, WRJ Dean, and PG Ryan, eds. 2005. Roberts' Birds of Southern Africa. 7th ed. Cape Town: John Voelcker Bird Book Fund. ISBN 978-0620340533
- Sinclair, I and P Ryan. 2003. Birds of Africa South of the Sahara. Princeton: Princeton Univ. Press. ISBN 978-0691118154
- BirdForum Opus contributors. (2021) Retz's Helmetshrike. In: BirdForum, the forum for wild birds and birding. Retrieved 25 June 2021 from https://www.birdforum.net/wiki/Retz%27s_Helmetshrike