Naked-faced Barbet (Gymnobucco calvus) [XC401986]
by Derek Engelbrecht from Ajebandele, Ijebu East, Ogun State, Nigeria (call, song)
Naked-faced Barbet (Gymnobucco calvus) [XC395655]
by Lars Lachmann from Parc National de la For\u00eat du Banco, Abidjan, Ivory Coast (call)
Subspecies
Apparently related rather closely to Sladen's Barbet (Gymnobucco sladeni) and Bristle-nosed Barbet (Gymnobucco peli). Birds from Mt Cameroon south to Gabon formerly separated from nominate, as subspecies major.
The following 3 subspecies are recognised:
calvus (Lafresnaye, 1841) - Sierra Leone east to Cameroon and Gabon.
congicus Chapin, 1932 - Western Congo (Brazzaville) and western Zaire south to north-western Angola.
vernayi Boulton, 1931 - West-central Angolan uplands. Considered by some authors to be a distinct species, Pale-throated Barbet (Gymnobucco vernayi).