Kosi Bird Observatory (KBO) and field education center (26°46’57”N/087°08’21”E) is the first and the sole bird observatory in Nepal established by Himalayan Nature (HN : a non-for-profit research and conservation organization). KBO lies in Sunsari district, East Nepal, to the north-east of Koshi Tappu Wildlife Reserve, the first Ramsar site of the country. It lies on a "prime migratory corridor".
References
Kosi Bird Observatory Wikipedia(Text) CC BY-SA