The crane is a large, long-beaked bird that is
found all over the world. There are 15 different species of crane found on
Earth today, but in spite of their similar appearance, cranes are not connected
to other long-necked birds such as herons.
Cranes are found on every continent with the exceptions of the Antarctic and South America, where they are found inhabiting the clement wetlands and swamps throughout the Northern and Southern Hemispheres.
Cranes are large sized birds that to
grow to an average of 1 meter in height. Some species of crane however, such as
the Red-Crowned crane of Eastern Asia, can grow to nearly 1.5 meters tall. Other crane species
can be slightly smaller although they are in general, very large birds.
Despite their apparently enormous body
size, cranes are actually quite agile flyers, getting their practise as they
migrate between Siberia, China and Japan. Unlike herons, cranes fly with their necks outstretched which helps them to control
their large bodies when soaring through the skies.
Despite its large size, the crane is
an omnivorous bird meaning that it feeds on both plants and animals alike.
Spending their lives close to water, cranes primarily feed on aquatic organisms
including insects, fish and amphibians, along with a variety of plants including
grains and tree bark.
Due to the sheer size of adult
cranes, they have few natural predators
within their native environment. Foxes, wildcats and large birds of prey including owls and eagles are the most common predators
of the crane and mainly their chicks.
Cranes normally breed in the warmer
summer months although the exact breeding season depends on the crane species.
Female cranes construct large nests, generally in the trees, where they lay
between 3 and 5 eggs. Once hatched the crane chicks are nursed by their parents
until they are strong enough to fledge (fly away from the family nest).
Today, many of the 15 crane species are either measured
to be vulnerable in the wild or critically endangered. The drastic decline of
the world's crane populations is primarily due to habitat
loss and effluence in their native environments.
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