08:58Tweet of the DayPoorwill (American Nightjar)BBC Radio 4 Duration: 1 minute Sun 24th Jan 2016, 08:58 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