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Mekong Delta and Cambodia are the vast grasslands. In recent decades, the area was converted into agricultural land and so cranes only concentrated in the natural areas remaining. Most of this natural area is currently protected areas include Tram Chim National Park, Dong Ha Tien and wetland areas near the border of the two countries Vietnam and Cambodia, all these areas are habitats for cranes feeding during the dry season. Compared to the Indian sub-species, subspecies Orient at adapting to environmental change habitat. Although the number of sub-species populations Oriental no downward trend in recent years. However, the conversion of natural wetlands into agricultural land, plus the frequent flooding (in the case of Tram Chim) did narrow the area of natural grasslands, the habitat of the whooping crane feeding in the dry season. Analysis of the variation in Tram Chim crane populations over the past 18 years shows that the instability of the population and tends to go extinct, which reflected a decrease habitat and breeding environment of cranes.
in 1988, the scientists recorded on 1,052 children in Vietnam sarus crane. 1989 and 1999, the number of people counted us most in the range of 187 to 814 individuals, with the number of children an average of 486 per year on average. In 2001, this number dropped to about 50 individuals. Although the dry season in 2004 the number of cranes are showing signs of rising again, with the number up to hundreds of children. But from 2006 to 2013, never had more than 200 cranes in Tram Chim each year and there are only a few dozen years. In 2012, the Tram Chim National Park is recognized at the time of the most red-headed cranes 67. 30 years ago, red-headed crane nesting in Dong Thap, but this phenomenon has not.
According to the Director of Tram Chim National Park, Dong Thap province, the number of cranes in the area of the garden in 2006 only about 100, by 1/8 compared to a 10 years.
According to nature Conservation Fund (WWF), the 2011 crane on the Tram Chim 94, 2012 decreased to 54 children, in 2013 only 13 children .
in early 2014, 30 children were returned sarus crane Tram Chim national Park live, but now according to records here only about 10 animals living
nutshell, cranes in Vietnam tend to divide into the small flock. At this rate, the number of cranes to Vietnam will continue to decline and increasingly alarming. The prospect crane to Vietnam is no longer totally can happen without the decisive impact to change the current situation.
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