Royal Tern

This is a large tern, second only to Caspian Tern but is unlikely to be confused with the carrot-billed giant, which has extensive dark underwing patches. The Royal Tern has an orange-red bill, pale grey upperparts and white underparts. Its legs are black. In winter, the black cap becomes patchy. Juvenile Royal Terns are similar to nonbreeding adults. Differences include juveniles having black sploched wings and a yellower bill.