05:58Tweet of the DayPoorwill (American Nightjar)BBC Radio 4 Duration: 1 minute Tue 27th Jan 2015, 05:58 on BBC Radio 4 FMAvailable for over a yearListen nowMichael Palin presents the common poorwill from an Arizona desert. Show more GenresFactualScience & NatureBrandTweet of the Day Source: BBC Online