05:58Tweet of the DayHawaiian CrowBBC Radio 4 Duration: 2 minutes Fri 25th Sep 2015, 05:58 on BBC Radio 4 FMAvailable for over a yearListen nowMiranda Krestovnikoff presents the Hawaiian crow, now extinct in the wild. Show more GenresFactualScience & NatureBrandTweet of the Day Source: BBC Online