Tweet of the Day is a series of fascinating stories about our British birds inspired by their calls and songs.
Brett Westwood presents the Hobby. Sickle winged, red-trousered and black-moustached, the hobby is a strikingly beautiful falcon. Hobbies arrive in the UK in late April or May from their wintering grounds in Africa. They are now flourishing in the UK where there are now around 2000 pairs, breeding mainly on farmland and heaths in England and Wales.