Cranes look a lot like herons but they are usually larger, and have a
partlynaked head, and a more heavy bill. When
they are flying, their long neck is stretched out in front, and the legs trail out behind.
The earliest fossils of cranes
were discovered in North America.
Living forms are living everywhere all over the world except in Antarctica and South America, but
populations of lots are endangered by hunting and habitat destruction
Cranes are tall birds with long legs. They are usually brown, white, or gray in their color. There are over 15 kinds of species of cranes. They look rather like herons. The whooping crane (Grus americana)
is the tallest Americanbird.[4] Adults stand 5 feet tall and have a wingspan of up to 7 feetCranes are omnivores. They eat many kinds of plants, reptiles, smallmammals, and other birds. The average life time of a crane is from 20 to about 25 years. Cranes
are highly social birds that live in large flocks. Some species of cranes are thought as holy in Asia, especially Japan
Cranes usually build their
nests in marshy areas and lay two eggs at a time. Cranes can
make sounds that are heard from far away. Cranes dancespecial dances when they mate, and they include stepping quickly, highleaps, stretching, and bowing. Crane chicks grow very quickly and at two to four months, they develop
their flight feathers. Cranes are very vocal. They use several different types of calls. They also communicate with
their bodies
All cranes are able to
defend themselves quite well. They are mostly quite large, and peck, kick and
batter opponents with their wings. They are territorial, and males will fight
even more vigorously than usual at mating seasons. Zookeepers use acrylic riot shields to protect themselves against
crane attacks.
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