Dripping saliva from the mouth of an Indian Bison Bos gaurus while it is flicking its tail and ears

indian bison bos gaurus bovine south asia thailand southeast asia asia national park kaeng krachan khao phaengma fur horn wild cattle gaur gayal bos frontalis evergreen forest deciduos rainforest wildlife sanctuary nature wildlife natural habitat nocturnal conservation grass redwattled wagtail tail flapping forest trees vegetation birds green insects flying world heritage site unesco mammal horns hooves salt lick