05:58Tweet of the DayPoorwill (American Nightjar)BBC Radio 4 Duration: 1 minute Mon 18th Jan 2016, 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