The river tern or common tern is a tern in the family Laridae. It is found at freshwater and sometimes to tidal creeks.
They feeds by plunge-diving fish, aquatic insects from river,lakes and tanks. During my visit of Nalsarovar bird sanctuary we saw a group of river terns sitting on the wooden sticks placed in a row. I shot this image when terns taking flight one by one. This tern opened up the wings to take a glide and its plumage looks so well ordered.