The Black Tern is a small, migratory bird known for its striking black cap and slender body. It typically measures about 25 to 30 centimeters in length and has a wingspan of approximately 70 centimeters. These birds are often found in wetlands, marshes, and along lakeshores, where they feed on insects and small fish. During the breeding season, the Black Tern builds its nest on floating vegetation or in shallow waters. They are known for their agile flight, often seen skimming over the water's surface. After breeding, they migrate to South America for the winter, showcasing their long-distance travel capabilities.