05:58Tweet of the DayBlack-chinned HummingbirdBBC Radio 4 Duration: 2 minutes Wed 17th Jul 2019, 05:58 on BBC Radio 4 LWAvailable for over a yearListen nowLiz Bonnin presents the North American black-chinned hummingbird. Show more GenresFactualScience & NatureBrandTweet of the Day Source: BBC Online