Vocalizations of the Black and White Colobus monkey ( Colobus polykomos Zimmerman 1780)

The vocalizations of the black and white colobus, Colobus polykomos , were recorded on the Kenya Coast. An analysis of spectrographic structure and social context reveals a high degree of similarity with the vocalizations of an allopatric population of C. guereza. While morphological and coloration differences may be particularly significant in discriminating black and white colobus species, vocalizations may be too conservative to be effective taxonomic characters for allopatric populations.