Eastern Sarus Crane was classified in the family of Gruidae, species of Grus antigone and sub-species of Grus antigone sharpii. They distributed in South-East Asia that including of Thailand, Cambodia, Laos, Myanmar, Vietnam and Malaysia. Current population of Eastern Sarus Crane extinct from the nature of Thailand more than 3 decades since 1968 and were classified to the 1 of 15 species in the Wildlife Preservation and Protection Act, 1992. So, Zoological Park Organization in Thailand (ZPO) which successes in the captive breed of Eastern Sarus Crane, they had released 46 cranes to the natural wetland in Huay-Jorakaemak reservoir non-hunting area (HJM) and Sanambin reservoir non-hunting area (SNB) of Burirum province since 2011. The monitoring process after released is operating continuously both of the ground surveys and tracking by the satellite transmitter and the radio transmitter. The results show that most cranes can be survival and adaptation well to new environment in the nature. In addition, their home ranges were various between dry and rainy season because they can fly in a long distance and when they growth to the reproductive age and mated, they will be separate from their group for create a territory. These result to the difficult of tracking and impossible to know about the habitat characteristic of them that cause affecting to the population re-introduction in the further.
This study, the researcher interested to studying in criteria and factors that support habitat selection of Eastern Sarus Crane after released back to the nature for applied to the model of habitat suitability index (HSI). HSI is a mathematics model that represents to ability of the habitat to support the reintroduction of wildlife species. Criteria and factors in the model to represent the interactions of habitat characteristics associated within wildlife species. This model is a multivariate statistic or a combination of mathematical equations and used for basic decide to the habitat assessment. The researcher will review the research document about the habitat factor of Sarus Crane in conjunction with the information of ground survey for determine the criteria and indicators of the study. The result has been shown to prediction of the quality and suitability of the wetlands which can be support to population of Eastern Sarus Crane that will be release in the future and get information for conservation and wetland management to prevent or mitigate conflicts between the local communities and government.