Crane (bird) facts for kids
Quick facts for kids Cranes |
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Common cranes (Grus grus) in Rajasthan | |
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Gruidae
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A crane is a type of tall wading birds from the family Gruidae (order Gruiformes). There are 15 species in 4 genera. The tallest is the sarus crane, Grus antigone, which can grow to a height of up to 1.8 m (5.9 ft),
Cranes look a lot like herons but they are usually larger, and have a partly naked 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.
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Description
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 American bird. Adults stand 5 feet tall and have a wingspan of up to 7 feet.
Life
Cranes are omnivores. They eat many kinds of plants, reptiles, small mammals, 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.
Reproduction
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 dance special dances when they mate, and they include stepping quickly, high leaps, 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.
Behaviour
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.
Evolution
Cranes are an ancient type of wading bird. Their first definite fossils are in the Eocene epoch, The rails (family Rallidae) are their nearest relatives in the order Gruiformes, and most of the other groups in the Gruiformes are flightless birds. These lived in forests, and left little or no fossil record.
Threatened
The biggest threats to cranes are hunting and habitat destruction. Cranes need large areas of habitat. All cranes are protected by international agreement.
Related pages
- Grus
- Blue crane
- Black-necked crane
- Common crane
- Grey crowned crane
- Red-crowned crane
- Sandhill crane
- Sarus crane
- Siberian crane
Images for kids
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The bare area of skin on the face of a sandhill crane can change colour or even expand in area when the bird is excited.
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The long coiled trachea that produces the trumpeting calls of cranes (sarus crane, Antigone antigone)
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Demoiselle cranes (Grus virgo) in Mongolia: Central Asian populations of this species migrate to Northern India in the winter.
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Common cranes (Grus grus) in Israel: Many species of crane gather in large groups during migration and on their wintering grounds.
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Grey-crowned crane (Balearica pavonina) in captivity at Martin Mere, UK
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Red-crowned cranes (Grus japonensis)
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Dwarves fighting cranes in northern Sweden, a 16th-century drawing by Olaus Magnus
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Songha (Korean), Cranes and Pines, 19th century. Brooklyn Museum
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Brass Crane Perched on a Tortoise, c. 1800–1894, from the Oxford College Archive of Emory University
See also
In Spanish: Grullas para niños