Yellow-casqued Hornbill illustration
Birdsong field guide

Yellow-casqued Hornbill

Ceratogymna elata

The Yellow-casqued Hornbill is a large, canopy-dwelling bird of West and Central African rainforests, known for its massive, cream-colored casque and significant role in seed dispersal.

What it sounds like

A series of loud, harsh, rhythmic barks and resonant 'kok-kok-kok' sounds that carry over long distances.

Reference call, compare with what you heard
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Rec. Brendan Sloan · Sierra LeoneCC BY-NC-NDXeno-canto

Field notes

  • It is among the largest hornbill species in Africa, reaching up to 90 centimeters in length.
  • The species exhibits sexual dimorphism; females possess a smaller, dark casque and rufous-colored feathers on their head and neck.
  • During the nesting period, the female is walled into a tree cavity with mud, relying entirely on the male to deliver food through a narrow slit.
  • The distinctive casque is made of keratin and is hollow, likely serving as a resonating chamber to amplify its loud vocalizations.
  • They are primarily frugivorous, specializing in high-lipid fruits from trees like the oil palm and various mahogany species.
Habitat
Primary lowland evergreen rainforests and mature secondary forests.
Range
West and Central Africa, from Senegal and Guinea east to Cameroon.

Similar & commonly confused birds

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