Koshi Tappu Wildlife Safari has carved a place it self as a birdwatchers's paradise. The reserve spreads over saptari and Sunsari district in eastern south of Nepal defined by the eastern and western embankments of River Koshi. The reserve has been recognized as wetland site from 1987. The vegetation of the reserve is mainly grassland with patches of scrub and deciduous reverine forest that makes Koshi tappu special is that birds seen here are not found other part of Nepal. The reserve has recorded around 439 species of bird variety. Some of which fly all the way from Siberia during winter. A wide variety of Ducks, herons, storks egrets, ibis are seen on the River bank. It has one of the few elephant stables of Asia. Other animals are found here are wild buffalo wild boar, hog deer, spotted deer, blue bell and jackal. Gharial Corcodile and Gangetic dolphin are other attractions. The best time to visit Koshi Tappu is between Octobers to April.