The Black Tern: Close Up HD Footage (Chlidonias niger)

The Black Tern is a beautiful bird species found in many parts of the world. These birds are quite small, only about 25 centimetres long, with a black head and belly during the breeding season. Their wings are grey and they have a forked tail. Black Terns breed in marshes and on lakes, making their nests on floating vegetation or small islands. They eat mostly insects and small fish, which they catch by diving into the water. After breeding, they migrate long distances to spend the winter in coastal areas or on large inland lakes. Unfortunately, their numbers have declined due to habitat loss and pollution, so they're considered a vulnerable species that needs protection.

Learn more: https://binocularbase.com/bird/black-tern/