Editor of The Countryman magazine Mark Whitley reveals how moving offices recently has opened up a whole new vista of bird species in this Tweet of the Day.

Mark begins his two weeks curating the back catalogue from Tweet of the Day. You can hear all five programmes chosen this week, and some thoughts from Mark and his passion for the natural world via the the Tweet of the Week omnibus edition, which is available via the Radio 4 Website.

Producer Andrew Dawes.