Terns are a type of long-billed shore bird that can be found in many parts of the world. They are known for their distinctive black and white plumage, long pointed wings, and long, slender bills. Terns typically feed on small fish, crustaceans, and insects, and they often nest in large colonies near the shoreline. They are highly migratory birds, and some species travel thousands of miles each year in search of food and suitable nesting sites.