Tweet of the Day is a series of fascinating stories about the British birds inspired by their calls and songs.
Michaela Strachan presents the common tern. The Common Tern is the most widespread of our breeding terns and is very graceful. It has long slender wings and a deeply forked tail with the outer feathers extended into long streamers. These features give the bird its other name, sea swallow, by which terns are often called.