Criniger verreauxi ndussumensis
Ndussuma country, Kinjawanga and Bellima, near Beni, DRCongo.
Taxonomic history confused. On basis of structural, behavioural and vocal similarities, sometimes treated as a race of C. olivaceus (which responds to playback of song of present species), but significant plumage differences suggest that, although clearly closely related, the two are better treated as distinct species#R; this interpretation is supported by results of molecular studies. Alternatively, has often been considered conspecific with C. calurus because of close similarity in appearance to sympatric races of latter, but differs in both voice and morphology (suspected differences in foraging behaviour not proven, owing to difficulty of distinguishing between the two species in the field)#R. Published reports of hybridization with C. calurus (race emini) in NE DRCongo seem to be based on observation of individuals apparently showing combination of characters then thought to be restricted to each form. Further work needed. Monotypic.
SE Nigeria E to E DRCongo (Semliki and Itombwe), S to coastal Congo; not known to occur across much of intervening region in S part of this range.
Food and feeding
Status and conservation
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!