
A smaller species of hornbill

The famous, great Indian hornbill |
The most important of all
bird accounts of the rainforest would be that of the toucan and hornbill. Both the toucans
and hornbills lives in the canopy of the rainforest, eating fruits, insects and small
animals.
Toucans inhabit the rainforest of Mexico and Central and
South America. They vary in size from the largest, the toco toucan and the smaller
aracaries and toucanets. These birds are known for their large and brightly coloured
bills. They are clumsy birds in the air, flying with their wings beating fast and gliding
unexpectedly. However their clumsiness are not due to their large bills. In fact, their
bills are very light, made up of a network of fibres with air spaced in between. Their
tongues are long, narrow and stiff for eating small flies and insects. The long bills are
used for picking of fruits. And when eating, it flicks it head backwards in a vertical
position and swallow the fruit. Other than for feeding, the bill also serves as a warning
to other birds, who will not dare to attack a toucan.
The toco toucan is the largest of the toucans and its beak is
brightly coloured with colours such as blue, yellow, red and orange. Its plumage is mainly
black with one or two colours such as red and orange. These striking colours on the beaks
and plumage are used to attract their mates. The toucans live in small flocks in which
they mate with. Their nests are in hollow trees, where two to four eggs may be laid. The
youngs are cared for by the parents for 8 weeks.
Hornbills on the other hand occur in forests of Africa and
Southeast Asia, and not in South America. Hornbills are much bigger than toucans and have
a casque on top of their head and bills. The age of a hornbill can be predicted from the
number of folds. As the hornbills age, the number of folds increases. The largest of the
hornbills is the African ground hornbill. They occur in the interior of South Africa from eastern Cape
Province to Kenya and from Transvaal across the northern Kalahari to Angola and Congo.
They live mainly on the ground and are carnivorous. And unlike other hornbills, they do
not built nests in hollow trees.
Many species of hornbills have a habit of
sealing the entrance to the nest with the female inside. The great
Indian hornbill seals the
entrance to the nest completely except for a small slit, with a mixture of mud, saliva and
feces. This is to protect the females and youngs from predators such as snakes. The female
will stay in the nest for 4 to 5 months, being fed by the male and young birds from the
previous clutch. She will excrete her feces through the small slit, doing this carefully
to prevent the nest from becoming soiled. Once the chicks are mature, the wall covering
the nest is broken down, releasing the birds.
The rhinoceros hornbill that is distributed along Southeast Asia, Africa
and New Guinea is a very heavy bird, weighing about 3 kg. It gets its name from the upward
pointing casque on its head. Its plumage is black mainly black with a white belly and tail
banded with black and white. The bill is ivory white with tinges of yellow. A loud roar
"KRONK" is often heard from both sexes, usually in the form of a chorus. They
are also seen saying "GAK" each time before flying. Pairs of these species often
inhabit the crowns of the tallest trees. This species of hornbill has also been selected
to be Malaysias national bird. |