Northern Pintail or Sholoncho ( in Bengali )
The Pintail or Northern Pintail (Anas acuta) is a widely occurring duck which breeds in the northern areas of Europe, Asia and North America. It is strongly migratory and winters south of its breeding range to the equator.
The Northern Pintail is a bird of open wetlands which nests on the ground, often some distance from water. It feeds by dabbling for plant food and adds small invertebrates to its diet during the nesting season.
Northern Pintail is a fairly large duck with a wingspan of 23.6–28.2 centimetres (9.3–11.1 in). The male is 59–76 centimetres (23–30 in) in length , and therefore is considerably larger than the female, which is 51–64 centimetres (20–25 in) long .
Source : Wikipedia, the free encyclopedia