Gruiforms, birds of the order Gruiformes, vary greatly in size. The smallest species, the American black rail, is only 4.7 inches (12 centimeters) high, whereas the Sarus crane, at 5.8 feet (176 centimeters), is the tallest flying bird. Weights in the group also vary tremendously. The American black rail weighs in at only 8 ounces (20 grams), while kori bustards and great bustards have been known …
Gruiformes as a group are found on all the continents except Antarctica, although most gruiform families have a more limited distribution. The kagu is found exclusively on the island of New Caledonia, off the coast of Australia in the Pacific Ocean. Buttonquails are found in portions of Europe, Africa, Asia, and Australia. Mesites are found in Madagascar. Trumpeters are found in the Amazon basin i…
Sunbitterns, limpkins, sungrebes, kagus, and rails tend to be solitary, living alone. Some species are territorial, that is, individuals defend a territory against other members of the same species. Other Gruiformes, however, such as seriemas and mesites, are frequently found in male-female pairs. Finally, some species of bustards, trumpeters, and cranes occur in flocks and can be highly social. G…
Gruiforms have been important to humans for a variety of reasons. Many species currently or traditionally have been hunted for food. Mesites are hunted for food in their habitats in Madagascar. Many species of buttonquails are also hunted for food, although this became illegal in many countries in 2001. Several species of buttonquails are now farmed as domestic livestock. In addition, some buttonq…
In 2000 the World Conservation Union (IUCN) reported that, of the ninety-three species of Gruiformes examined, twenty-two species were already Extinct. In addition, one species, the Guam rail, exists only in captivity and is considered Extinct in the Wild. Four rail species are listed as Critically Endangered, facing an extremely high risk of extinction, while an additional eleven are listed as En…
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