World Bird List

Species factsheet
Black-and-white-casqued Hornbill (Bycanistes subcylindricus)

Order: Bycanistes subcylindricus
Family: Hornbills (Bucerotidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
subcylindricus Sierra Leone to w Nigeria
subquadratus e Nigeria to w Kenya nw Tanzania and e DR Congo, also n Angola
Annoncer