Fauna
Bird

Black-and-white-casqued Hornbill

Bycanistes subcylindricus

Also known as Grey-cheeked Hornbill, Grey-cheeked Casqued Hornbill

Black-and-white-casqued hornbills fill central and western African rainforests with heavy, swooping flight that produces a distinctive roaring whoosh from unfeathered feather bases. Breeding pairs seal the female inside a tree cavity using mud and feces, leaving only a tiny slit where the male feeds her and their chicks for months. These noisy, social birds play a crucial role in forest regeneration by dispersing large fruit seeds across the canopy.

Canopy DwellerFrugivoreLoud Wingbeats
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & preyFigs, Insects, Tree Frogs
Predators
  • Crowned Eagles
  • African Rock Pythons
  • Chimpanzees
ThreatsDeforestation, loss of large nesting trees, hunting
HabitatsEvergreen tropical rainforests, mature gallery forests, dense riverine woodlands
Life span15–30 years
  1. OrderBucerotiformes
  2. FamilyBucerotidae
  3. GenusBycanistes
  4. SpeciesBycanistes subcylindricus
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
Responsible observation
  • Listen for Wingbeats: Listen for loud, heavy whooshing sounds overhead caused by air moving through unfeathered wing shafts.
  • Scan Fruiting Canopy: Look for large black-and-white silhouettes perched high in wild fig trees during early morning hours.
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