Black-casqued Hornbill

Le Calao à casque noir (Ceratogymna atrata) est une espèce d'oiseaux de la famille des Bucerotidae. Son aire s'étend à travers l'Afrique équatoriale. Voir aussi Liste des oiseaux d'Afrique équatoriale Liens externes Oiseaux.

The black-casqued hornbill (Ceratogymna atrata), or black-casqued wattled hornbill, is a species of hornbill in the family Bucerotidae. It is found fairly commonly across sub-Saharan Africa, being known from Sierra Leone and Liberia in Western Africa (as well as most of the West African nations along the Gulf of Guinea), south to Angola and east to the Democratic Republic of the Congo and western Uganda. They are currently considered of near threatened, and their population is declining.

El cálao casquinegro​ (Ceratogymna atrata) es una especie de ave bucerotiforme de la familia Bucerotidae ampliamente distribuida por las selvas del África subsahariana. ​ Se le encuentra desde Uganda hasta Liberia y desde Angola a Nigeria. No se conocen subespecies.