Natural History
Do you want to know what a great
cormorant is? It is a really big bird
with a long bill. The great cormorant is about 2 to 3 ft long. The
great cormorant is the largest of its family. When the female gives
birth, it lays about two to six eggs. It is usually found in seas from
the Arctic to the tropics. It is also found in inland waters.
Birds need to eat a lot of food to have energy when flying. Back in
dinosaur times, there weren’t any mammals.
The dinosaurs became extinct and their bodies were buried by the sand.
The first bird found was millions of years old. Scientists didn’t
really find the bird, all they found was the fossilized skeleton of it.
Most scientists think that the bird they found was a dinosaur with
wings. Scientists
called this bird Archaeopteryx.
Habitat
The great cormorant is found in many habitats. They are found not
only on the ocean but also on lakes, wide rivers, flooded waters and
lagoons. It has to live near water to find its food. It can also be
found far from coasts, feeding in shallow waters.The great cormorant is
found around sheltered fresh and salt water from the Arctic to the
tropics.
They are also found on rocky shores, coastal inlands, and sea cliffs.
Present Status
The
great cormorant is a species of concern in the State of Maine.
Physical Description
The great cormorant is a pretty good-sized bird. Its size is 70-90 cm
high. It has a long bill. The bill is tipped with a impressive and
incredible point. The bill’s mandibles (lower jaw) deliver a crushing
bite. The end of the bill is really sharp so it can catch the fish. The bird itself
is darker on the breast and neck. The adult’s coloring is entirely
black. It has a bare chin which is orange, and has a whitish throat.
The young cormorant has a dark brown back and a pale white belly. It
also has a deep voice.
Diet & Feeding Habits
The great cormorant
eats small fish and insects and drinks fresh water. It also eats frogs
and crabs. It is an excellent swimmer and it normally takes it one
minute to catch a fish. It swims and chases its prey using its
feet as paddles.
The great cormorant is
different from many diving birds because it doesn’t have
water-repellent wings. The great cormorant stands on rocks or pilings
after it has been in
the water to let its feathers dry.
Threats
The great cormorant is a species of concern. There are many reasons why
it is a species of concern. A few of these reasons are habitat
disturbance, oil slicks, and recreation/tourism. People dislike the
white bird droppings. The droppings often kill trees and most of the
vegetation. Some people will destroy the nests and the birds, so there
won’t be any more droppings.
Personal Essay
I think the value of wilderness
to
modern society is important to the animals. Many animals live in the
wilderness. So we have to value it. If we don’t keep it safe then we
are going
to destroy the habitat of many animals. Something really important is
to always keep it clean and not to take things out of it, such as
trees.
It's important to know that animals are living organisms, too, and we
need to respect their habitat.
Do animals eat different animals? Well yes, some animals eat other
animals for food; they are call carnivores. The ones that only
eat plants are call herbivores and the animals that
eat meat
and plants are call omnivores.
Bibliography
1.
http://vims.edu/bridge/archive0301.html
2.
http://www.bsc-eoc.org/iba/site.cfm?siteID=NSO57&lang=en
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