Tweet of the Day is a series of fascinating stories about the British birds inspired by their calls and songs.
Michaela Strachan presents the arctic skua. Arctic Skuas are the pirates of the bird world and cash in on the efforts other seabirds make to find food. They are elegant birds with long angular wings, projecting central tail feathers and a hooked bill. The dashing flight of an Arctic Skua as it chases a hapless gull is always thrilling to watch.