It is the largest dark-colored sea bird species in Turkey. It has white cheeks and throat, and orange or yellow sac. As web-footed birds, Great Cormorants are relatives of Pelicans. Their long beaks are hooked and wings are very strong. They catch fish by plunging in water. Great Cormorants can stay and swim underwater for a long time, chasing fish. They fly very close to the surface of sea while searching for preys.