Tweet of the Day is a series of fascinating stories about the British birds inspired by their calls and songs.
Michaela Strachan presents the northern wheatear. With their black masks, white bellies, apricot chests and grey backs, male wheatears are colourful companions on a hill walk. The birds you see in autumn may have come from as far as Greenland or Arctic Canada. They pass through the British Isles and twice a year many of them travel over 11,000 kilometres between Africa and the Arctic. It's one of the longest regular journeys made by any perching bird.