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There are about 100 hooded cranes wintering in Chongming Dongtan, Shanghai every year. Dongtan Nature Reserve is the largest natural wintering site in the world. In December 2011, a hooded crane was seen overwintering at the Hiwassee Refuge in southeastern Tennessee, well outside its normal range. [ 3 ]
The species with the smallest estimated population is the whooping crane, which is conservatively thought to number 50–249 mature individuals, [5] and the one with the largest is the sandhill crane, which has an estimated population of 450,000–550,000 mature individuals.
Of the four crane genera, Balearica (two species) is restricted to Africa, and Leucogeranus (one species) is restricted to Asia; the other two genera, Grus (including Anthropoides and Bugeranus) and Antigone, are both widespread. [5] [1] Many species of cranes are dependent on wetlands and grasslands, and most species nest in shallow wetlands.
This is a list of the bird species recorded in China. The avifauna of China include a total of 1431 species, of which 57 are endemic , and 3 have been introduced by humans. Of these, 108 species are globally threatened.
The western meadowlark is the state bird of Nebraska. This list of birds of Nebraska includes species documented in the U.S. state of Nebraska and accepted by Nebraska Ornithologists' Union (NOU). As of August 2021, there are 467 species included in the official list. Of them, 95 are classed as accidental, 19 are classed as casual, two are extinct, and three have been extirpated. Four have ...
Gruiform means "crane-like". Traditionally, a number of wading and terrestrial bird families that did not seem to belong to any other order were classified together as Gruiformes. These include 15 species of large cranes , about 145 species of smaller crakes and rails , as well as a variety of families comprising one to three species , such as ...
The genus formerly included additional species. A molecular phylogenetic study published in 2010 found that the genus Grus , as then defined, was polyphyletic . [ 5 ] In the resulting rearrangement to create monophyletic genera, the sandhill crane , the white-naped crane , the sarus crane and the brolga were moved to the resurrected genus ...
A common crane photographed in Slimbridge. Cranes are large, long-legged and long-necked birds of the order Gruiformes.Two species occur as wild birds in Great Britain: the common crane (Grus grus), a scarce migrant and very localised breeding resident currently being reintroduced to the country, and the sandhill crane (Antigone canadensis), an extreme vagrant from North America.