05:58Tweet of the DayHyacinth MacawBBC Radio 4 Duration: 1 minute Tue 29th Dec 2015, 05:58 on BBC Radio 4 LWAvailable for over a yearListen nowSir David Attenborough presents the hyacinth macaw of the Brazilian Pantanal. Show more GenresFactualScience & NatureBrandTweet of the Day Source: BBC Online