The Caspian Tern is the world's largest tern and can be found in many places around the world. Its breeding habitat is large lakes and ocean coasts in North America (including the Great Lakes), locally in Europe, Asia, Africa, Australia and New Zealand. Caspian Terns in North America migrate to southern coasts, the West Indies and northermost South America. European and Asian birds winter in the Old World tropics, and those in Africa and around Australia are resident or dispere over short distances.
Adult birds have black legs, and a long thick red-orange bill with a small black tip. Caspian Terns have a white head with a black cap and white neck, belly and tail, and its upper wings and back are pale grey.
