The Rushikulya river mouth in Odisha’s Ganjam district, which is known for the mass nesting of the endangered Olive Ridley Turtles, was found as a potential habitat for Irrawaddy dolphins, a forest officer said on Tuesday. The forest department officials have sighted the congregation of 13 such critically endangered dolphins near Bateshwar under Khallikote forest range during the counting of the sea mammals, he said. The three-day dolphin census was carried out between January 20 and 22.