Rivers, it inhabits lakes, ponds, wetlands, tidal flats, such as in rice paddies. The non-breeding season to live alone, but also create a small group.
In edible animal food, you eat fish, amphibians, chicks of birds, small mammals, crustaceans, insects and the like. You can ambush in the waterside, to look for prey while wandering the waterfront and shallows. When you discover the prey, and prey stretched quickly neck. In the deep location of water depth, there is that you are swimming and floated the body in water.