Burundi (B) (NB), Congo [The Democratic Republic of the] (B) (NB), Kenya (B) (NB), Rwanda (B) (NB), Tanzania [United Republic of] (B) (NB), Uganda (B) (NB).
Western and southern Uganda, Rwanda, Burundi, extreme eastern DRCongo (Vichumbi, Rutshuru), north-western Tanzania, and south-western Kenya (shores of L Victoria south-east to Kisumu, Yala Swamp and Kendu Bay).
 
Population
Estimated population is unknown (2010).
Papyrus Gonolek (Laniarius mufumbiri) [XC42847]
by Jason Anderson from Kabaya Valley Papyrus Swamps, SE Rwanda, Rwanda (call, song)
Papyrus Gonolek (Laniarius mufumbiri) [XC430500]
by Andrew Spencer from Mabamba Swamp, Uganda (song)
Subspecies
No subspecies.
Closely related to Yellow-breasted Boubou (Laniarius atroflavus), but the two are better treated as independent species, rather than as a superspecies. Their closest allies are Common Gonolek (Laniarius barbarus) and Black-headed Gonolek (Laniarius erythrogaster), the four constituting a lineage that is sister to the cluster comprising Tropical Boubou (Laniarius aethiopicus), Turati's Boubou (Laniarius turatii), Southern Boubou (Laniarius ferrugineus), Swamp Boubou (Laniarius bicolor) and Luehder's Bush-shrike (Laniarius luehderi).