Southern Ground Hornbill
(Bucorvus cafer)
Facts
IUCN VULNERABLE (VU)
Facts about this animal
Very large, turkey-like, mostly black bird with a long, strong, black bill, white primary feathers, and distinctive red facial skin and throat sac. They walk on stout relatively long legs and fly well but infrequently. The female has a dark purplish patch on the bare skin below the bill, and the juvenile facial skin is cream before slowly turning red over 4 years. They live in co-operative groups of 2 - 10, with an alpha breeding pair, and generally only adult males and juveniles as helpers. They are a very slow breeding bird on average only rearing one chick to fledging every 9 years, but the annual turnover is only about 2% and mean lifespan is estimated at 40-50 years. They lay 1-3 eggs in a large cavity in a big trees or cliff. They are only known to rear one chick, the second and third chick nearly always dying of starvation within a week. They are almost entirely carnivorous and kill their prey with their bill. They do not drink water and acquire the necessary moisture from fresh food. They spend the day walking large distances foraging for insects, reptiles, (including tortoises), beetles, grasshoppers, snakes, frogs and also mammals up to the size of a spring hare or small monkey. They are vocal mostly in the early morning with a deep, booming 4-note territorial call. They have acute eyesight with long eyelashes, possibly acting as sunshades as they walk across the veld (Ref. Martin, G. 2002)
(Ref. Kemp, A.C. & Kemp, M.I. 1980, Kemp 1995)
Did you know?
that, in South Africa, ground hornbills have been used in traditional medicine? It was also custom to have one of these birds in the village because the villagers believed it brings them good luck. In Sudan, native hunters will tie a stuffed hornbill head to their own head and will crawl through the grass while searching for prey. When the prey see this image they think that it is only the Abyssinian Ground Hornbill and are not suspicious.
| Factsheet | |
|---|---|
| Class | AVES |
| Order | CORACIIFORMES |
| Suborder | BUCEROTES |
| Family | BUCEROTIDAE |
| Name (Scientific) | Bucorvus cafer |
| Name (English) | Southern Ground Hornbill |
| Name (French) | Bucorve du Sud, Calao terrestre du Sud |
| Name (German) | Kaffernhornrabe |
| Name (Spanish) | Cálao terrestre sureño |
| Local names | Afrikaans: Bromvoël, Wilde-kalkoen |
| CITES Status | Not listed |
| CMS Status | Not listed |
Photo Copyright by
Peter Massas
Distribution
| Distribution | |
|---|---|
| Range | Africa south of the equator, from southern Kenya to the Eastern Cape in South Africa, but absent from the arid Kalahari and Namib Deserts, and from the forests of the Congo Basin. |
| Habitat | Savanna, from open grassland to tall woodland, also visiting agricultural lands. |
| Wild population | An estimated 1.500 birds in South Africa, declining from loss of habitat through degradation, encroachment and settlement, destruction of large nesting trees, poisoning, shooting, trade in exotic birds and traditional medicinal use. 50% of original habit has been lost in the past 60 years. Also declining in areas of Zimbabwe, exported from Tanzania in numbers, but status in the rest of Africa largely unknown. |
| Zoo population | 229 reported to ISIS |
In the Zoo
How this animal should be transported
For air transport, Container Note 13 of the IATA Live Animals Regulations should be followed.
Find this animal on ZooLex
Photo Copyright by
D. GOrdon E. Robertson
Why do zoos keep this animal
This large, dramatic bird is an ideal flagship species of the African Savanna habitat, offering opportunities for public exhibition and public awareness, and as an indicator of the plight of many species in the Savannah grasslands, particularly in South Africa (cheetah, wild dog, roan, sable, ground hornbill).
Important conservation opportunities for breeding programmes to maintain long-term ex-situ populations linked to in-situ conservation projects for augmentation of non-viable groups in the wild, and reintroduction in case of wild extinction in parts of their range. Zoo programmes might also provide funding and materials for research into the biology, husbandry, demography and genetics as a backup to efforts with wild populations.
(Ref. The Mabula Ground Hornbill Research Project, South Africa)
How this animal should be kept
As this large, intelligent and social bird pairs for life, normally as an alpha male and female within a group of co-operative breeders, it should be supported, ideally by male helpers, and care taken that the pair bond is maintained. As there is normally only one breeding female in the group, any other female, even their own juvenile, may be in danger of attack from fledging. During the breeding season care must be taken against attack of people near their nest by defensive adults.
A large covered aviary with high roosting branches, a large artificial nest, and a fine spray of water during hot weather may induce breeding. They will sit in hot sun during the heat of the day in the wild, but resort to shade if they can find it. Long natural savannah-type grass for foraging and walking, with enrichment of piles of leaves and piles of rhino/elephant dung, with crickets and beetles inside, may occupy and encourage this slow breeding bird to lay eggs in the spring.
Artificial incubation and hand-rearing is usual and double-clutching the norm, at least in captivity, but successful parent rearing is encouraged for chicks destined for wild release. Removal of any second chicks is essential to ensure their survival since they die, apparently of parental neglect, even in the presence of abundant food. Feeding hand-reared chicks with ghosts and puppets, and in silence except for natural bush sounds, will help to avoid habituation to people. Sexual imprinting appears not to be a problem, but habituation to people by this very large, brave and curious bird occurs easily and may end up killing them in the wild. Releases into groups in the wild are most easily achieved with juveniles of up to six months old. (Ref. Turner, A personal comment)