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Ground Hornbills |
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Bucorvus leadbeateri
Southern Ground Hornbills are
charismatic birds, easily
identifiable by their appearance
and signature call. Unfortunately,
less than 1500 Ground Hornbills
are left in South Africa. The
species is classified as
vulnerable in the Eskom Red Data
Book of Birds of South Africa,
Lesotho and Swaziland.
Ground Hornbills live in family
groups of between two and eleven
birds, comprising a dominant alpha
breeding pair, a variable number
of juveniles and adult male
helpers. The species’
vulnerability is increased due to
this social structure, and by the
fact that only one out of two or
three chicks can fledge. Ground
Hornbills are extremely long-lived
birds. The dominant pair only
breeds on average every 2,5 years
and successful fledglings only
occur on average every 9 years.
The stronghold for the species is
primarily within formal
conservation areas. With
territories of over 100 km2, the
birds forage over wide areas, but
cannot survive and breed in areas
without suitable natural holes in
either trees or rock faces.
Disturbance at cliff sites and the
removal of large trees,pose a
threat to the survival of these
birds. Other threats include
deforestation, poisoning and the
use of the species in local
cultural practices, like
rain-making. Another threat is
direct persecution as a result of
their habit of attacking their
refection in windows that can
cause property damage.
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Fast facts |
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Only one out of two or three
Ground Hornbill chicks
fledges. |
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Ground Hornbills are
important in South African
culture due to the fact that
they can supposedly end
droughts. |
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Ground Hornbills can damage
property when attacking
their reflection in windows. |
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Ground Hornbills nest in
holes in trees or on cliff
faces between 4 and 5 m off
the ground. |
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Ground Hornbills need very
little water to survive. |
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