About Assan Barrage
The Asan Conservation Reserve (400 m) in Dehradun district at the bank of river Yamuna is India’s first conservation reserve, established in 2005. It covers 4.5 sq.km. area, this is situated at the junction of the Yamuna and Asan rivers. Asan is listed as an Important Bird Area (BNHS and BirdLife International). Its is popular for winter migrated birds.
Asan provides an ideal habitat to a large number of migratory and resident waterfowl. During winters, it not unusual to count as many as 8000 waterfowl with high species diversity as the Asan has both shallow and deep water areas. More than 251 birds species have been recorded in this area including 80 water-birds. This area is one of the best sites for congregations of Brahminy Ducks.
As per the records, more than 250 bird species including 80 water birds were recorded. It is marked by presence of Brahminy ducks, Rudely Shel duck, Dabbling Duck, Diving Duck. Birds; Herons, Egrets, storks, Ibises are Geese, which are seen during winter season (Nov to Feb)