Eastern sarus crane was classified in family Gruidae, species of Grus antigone and subspecies of G. a. sharpii according to chromosome or DNA classification. They are mainly distributed in Southeast Asia including of Thailand, Cambodia, Lao, Myanmar, Vietnam and Malaysia. Both males and females are similar in morphology, but they are different in size and unison call behavior. It is approximately 5-12 kilograms weight with totally 1.60-2.00 meters height.