05:58Tweet of the DaySparrowhawkBBC Radio 4 Duration: 1 minute Tue 19th Apr 2016, 05:58 on BBC Radio 4 FMAvailable for over a yearListen nowSteve Backshall presents the story and sound of the sparrowhawk. Show more GenresFactualScience & NatureBrandTweet of the Day Source: BBC Online