Birdsong field guide
Southern Ground-Hornbill
Bucorvus leadbeateri
The Southern Ground-Hornbill is the world's largest hornbill, distinguished by its terrestrial habits, striking black plumage, and vibrant red facial skin. These long-lived, social birds are highly intelligent apex predators of the African savanna.
What it sounds like
A deep, rhythmic, booming 'hoo-hoo-hoo-hoo' that resembles a distant lion's roar and is often performed as a duet.
Reference call, compare with what you heard
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Field notes
- They are cooperative breeders, living in family groups where only the alpha pair breeds while others serve as nest helpers.
- The species has an exceptionally slow reproductive rate, successfully fledging a single chick only once every six to nine years on average.
- Their inflatable red throat sacs act as resonators to amplify low-frequency calls that can be heard over several kilometers.
- Unlike most hornbills, they are almost entirely carnivorous, hunting prey as large as hares, tortoises, and venomous snakes.
- In many African cultures, they are revered as 'rain birds' and are often protected by local taboos against harming them.
Habitat
Savannas, open woodlands, and grasslands with large, old-growth trees for nesting cavities.
Range
Southern and Eastern Africa, ranging from Kenya and Burundi south to the Eastern Cape of South Africa.
Similar & commonly confused birds
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