The term 'Fork-tailed Fliers' is a reference to Terns, a type of seabird. Terns are known for their long, forked tails and their ability to fly long distances. They are found in many parts of the world, including coastal areas, islands, and inland wetlands. They feed mainly on small fish, crustaceans, and insects. Terns are also known for their graceful flight and their ability to dive into the water to catch prey.