Also known as the eastern white pelican, rosy pelican, or white pelican, the great white pelican breeds from southeastern Europe through Asia and Africa, in swamps and shallow lakes. It is highly sociable and often forms large flocks. Great white pelicans usually prefer shallow, warm fresh water and they mainly eat fish. The pelican’s pouch serves simply as a scoop. As the pelican pushes its bill underwater, the lower bill bows out, creating a large pouch that fills with water and fish. As it lifts its head, the pouch contracts, forcing out the water but retaining the fish.