Laos has one of the most pristine ecologies in South East Asia. In addition to its fascinating vegetation, Laos plays host to a diverse animal kingdom. Several exotic mammals are endemic such as leopard cats, Javan monoose, goat antelopes as well as rare species of gibbons and linger, Malayan sun bear, Asiaticblack bear and guar. In the south of Laos, near Khong Island, Irrawaddy dolphins inhabit the Mekong River. While many species of wildlife are shy and can rarely be seen, spectators will generally be able to spot the dolphins in spring when the water level of Mekong is lowest. Laos is also rich in resident and migrating birds. One of the more notable ones is the tare Green Peafowl.