Cranes is a large species of the bird, with a total of 15 species and distribution in almost all regions of the world, except the South of American. The Their eight species are the migration bird in the North zone and the seven species are the resident birds in tropical and subtropical regions. Nowadays, all species of Cranes are in the threatened situation and has the status of near critically extinction in some species. The importance problems of the decline in population and fragmentation of the Cranes are result from the loss and destruction of wetlands that is a main habitat of them, The developing and changing the agriculture areas from the paddy field to sugarcane or soybean fields or industrial areas, The chemical and pesticides in agricultural areas is side effect directly to the birds and accumulate in the egg to make the chicks are die or incomplete. There are also of the trade, to make food, the material in the production of drugs and the activities of human in wetland.