Hooded Vulture
SCIENTIFIC NAME
Necrosyrtus monachus
CLASSIFICATION
Class: |
Aves |
Order: |
Falconiformes |
Family: |
Accipitridae |
Genus: |
Necrosyrtus |
Species: |
monachus |
SIZE
Length: |
Male: |
22-24 inches |
|
Female: |
24-26 inches |
|
|
|
Weight: |
Male: |
44 1/2 pounds |
|
Female: |
slightly
larger |
|
|
|
Wingspan: |
Male: |
5 feet |
|
Female: |
5 feet |
APPEARANCE:
Hooded
Vultures are the smallest and weakest vultures in their range. They
are dark brown, have rather short, rounded tails and thin, weak beaks.
The bare skin on their faces is reddish pink but may become bluish
when the birds are excited or greenish-white when frightened. They
have weak feet that are adapted for walking and running, not for
clutching branches. Their wings are long, and the birds can soar
for long periods. The bill is particularly long and narrow, giving
an easy way to identify Hooded Vultures from other vultures. The
bird gets its common name from the wool-like down that covers the
lower throat and rear of the neck that resembles a hood. From a distance,
the Hooded Vulture may be mistaken for the Lappet-faced Vulture in
color, but Hooded Vultures are only half the size.
RANGE/DISTRIBUTION:
Hooded
Vultures are Old World Vultures and are not closely related to the
vultures of North and South America. They range widely in Africa
south of the Sahara Desert. They are most numerous in West Africa.
HABITAT/TERRITORY SIZE:
These
birds are the only vultures in Africa that are commonly found around
towns and villages as well as in forests. They depend on the presence
of places like slaughterhouses and open markets and are less reliant
on carrion than other vultures. Their habitats include open plains,
savannas, forests, coastal areas, and villages. It is the only vulture
species that will venture into wet forest areas.
MIGRATION:
Hooded
Vultures are a non-migratory bird.
DIET:
Hooded
Vultures are scavengers that consume food from a variety of sources.
They are opportunistic feeders with decaying flesh (carrion) from
animal carcasses making up the principal source of their diet. Because
of its relatively small size and weak bill, it generally waits its
turn at a carcass to pick up minor scraps left behind by larger vultures.
In towns and cities, they search for food in refuse dumps and gutters
and interact extensively with humans. On seashores, they feed at
low tide on mussels, spiny lobsters, mollusks, dead fish and other
stranded edibles. They are not in the position of being picky eaters
so will also eat grasshoppers, grubs, and locusts.
Like other
vultures, Hooded Vultures cannot expect to eat every day since carcasses
might not be available. To compensate, their crops
and gizzards can be distended to hold enough food to last for several
days. Even young vultures survive well without daily feedings.
HUNTING METHOD:
Because
they are smaller than other vultures in the area, the Hooded Vulture
can take off more quickly using a thermal to gain altitude and is
often the first to find a carcass. Hooded Vultures detect dead animals
by sight. They sometimes gorge so heavily that they can scarcely fly.
BREEDING INFORMATION:
Hooded
Vultures are silent birds and mated pairs are devoted to each other,
roosting together outside the breeding season. They will usually
roost close to their preferred breeding site. The nest will be 20-120
feet high in a tree with their favorite nesting trees being silk
cotton and baobabs if there are any in the territory. They construct
huge stick nests lined with green leaves that will be used year after
year.
The female
lays and incubates a single egg that has reddish spots on a whitish
base. Incubation lasts 46 days, and the male provides
food for the female during this time. The young chick is helpless and
must be watched carefully by the parents until the chick is 21 days
old. The male will provide food for both the female and the chick. Feeding
by both parents then becomes a rigorous ordeal, especially as its
first flight will not be until the chick is 120 days old and easily
as large as the parents. The fledgling vulture will still require some parental
care until it becomes independent about one month after its first flight.
BEHAVIOR:
Like
other vultures, Hooded Vultures, in spite of their apparently “unappetizing” manner
of feeding, are actually quite clean birds and bathe frequently.
They are very valuable birds to have around because they clear up
all sorts of refuse that, if left unchecked, could cause illness
and disease.
Bolder
than most, the Hooded Vulture is often known to approach man. One
common behavior is the vulture’s habit of
following a plow in order to enjoy the healthy grubs and insects
it turns up.
STATUS:
Hooded
Vultures are common throughout their range. The African villagers
recognize the birds as doing a necessary job and do not harm or hunt
them. In fact, Hooded Vultures are so comfortable around humans that
they are frequently seen hopping in and out of huts while the humans
walk around them.
FOLKLORE AND MYTHS:
A legend
of the Yoruba tribe of western Africa tells of a time when the land
was dry from lack of rain and the crops were dying. In order to make
a sacrifice to the storm god, a ram was killed and put in a basket
to be carried to heaven. All of the birds busied themselves with
other tasks so they would not have to perform the lowly task of carrying
the ram to heaven. Finally, the vulture, whom nobody liked, agreed
to carry the sacrifice. At once, rain fell upon the land. When the
vulture returned, he found that his home had been flooded and destroyed.
When he went to the other birds for help, they all turned him away.
To this day, the vulture remains an outcast, eating food from dumps;
and he remains bald because the fire of the sacrifice scorched the
feathers from his head and neck.
On Africa’s
Gold Coast, the royal family at Kumasi values the Hooded Vulture’s
scavenging work and holds the bird as sacred and protects it by law.
The
scientific name, Necrosyrtes monachus, literally means “ a
monk-like (bird) that drags away the dead.”
BIBLIOGRAPHY:
-
Honolulu Zoo, Honolulu, Hawaii, www.honoluluzoo.org
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Internet site:
www.vultures.homestead.com
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Internet site: www.lairweb.org.nz
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