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Snøtrane, Grus leucogeranus     

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Red List Category & Criteria: CR A3cde ver 3.1 (2001)
Year Assessed: 2007 Assessor/s: BirdLife International
Evaluator/s: Bird, J., Butchart, S. & Crosby, M. (BirdLife International Red List Authority)
Justification: This long-lived crane qualifies as Critically Endangered owing to fears that its global population will decline extremely rapidly over the next three generations following the development of the Three Gorges Dam in China which threatens the wintering grounds used by the vast majority of individuals. If the impacts of this development prove to be less damaging than is feared, the species may warrant downlisting.
History: 1988 - Threatened (Collar and Andrew 1988)
1994 - Endangered (Collar, Crosby and Stattersfield 1994)
2000 - Critically Endangered (BirdLife International 2000)
2004 - Critically Endangered (BirdLife International 2004)
2006 - Critically Endangered (BirdLife International 2006)

©IUCN 2008. 2008 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 11th April 2008.

The Siberian Crane, Grus leucogeranus, also known as the Siberian White Crane or the Snow Crane,
is a bird of the family Gruidae, the cranes.

picture hopefully to come
2006: only two Siberian Cranes (both males) return to the wintering site
in northern Iran in October, one disappears later.

This species breeds in arctic Russia in Yakutia and western Siberia. It is a long distance migrant.
The eastern population winters on the Yangtze River and Lake Poyang in China,
the central population at Keoladeo National Park, India
and the western population in Fereidoonkenar and Esfahan in Iran.
It breeds and winters in wetlands, where it feeds on the shoots, roots and tubers of aquatic plants.


Siberian Crane (This is the last pair which visited Bharatpur)
Navneet, http://picasaweb.google.com

This is a large white crane.
Large males can exceed 140 cm (55 inches) in length and weigh over 10 kg (22 lbs).
Adults are all white, except for a dark red mask extending from the bill to behind the eye.
It has a yellow iris and reddish legs. The male is slightly larger than the female.
Juveniles have a feathered mask and buff or cinnamon plumage.
The voice is flute-like and musical.

The status of this crane is critical, as it is expected to undergo a rapid population decline in the near future. The wintering site in China holding 95% of the population is threatened by hydrological
changes caused by the Three Gorges Dam. The population is estimated to be around 2000 in China.


   
© www.savingcranes.org

Historic records from India suggest that a number of them wintered there in the past.
In fact, Ustad Mansur, a 17th century court artist of Jehangir, was the first man
to accurately paint the Siberian Crane. However, the number of birds wintering in India has
steadily declined and the birds are no longer found there.



At almost 4,000 miles, the Yangtze is the fourth longest river in the world, discharging into the sea about twice the water of the Mississippi. For as long as people have kept records, the Yangtze has been in the habit of periodically overflowing its banks and flooding vast areas. Controlling that ancient threat, along with producing electricity, are the main goals of the Three Gorges Dam


NASA/Goddard Space Flight Center Scientific Visualization Studio
http://projectpowerplant.com
At left is a 1987 bird’s eye view of the Three Gorges Dam region as seen with Landsat-5 satellite.
At right is a 2006 bird’s eye view of the Three Gorges Dam region as progress on the dam is well underway.



Lake Hornborga 2005
Main Menu - Hovedmeny
Cranes in the Air - Traner i luften
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DYR

over 250

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FUGLER

over 500

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FLORA

over 225
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HAVDYR
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REISER
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VULKANER




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