In this episode we talk with Mark Avery, former RSPB Conservation Director, and now one of the leading figures in efforts being made to stop the persecution of Hen Harriers on driven grouse moors, about his latest book 'Inglorious, Conflict in the Uplands'; with Dr Andy Clements, Director of the British Trust for Ornithology on how scientific data is crucial to tackling illegal bird killing, and how important it is that organisations work together to tackle global conservation issues; and with Bardsey Island warden Steve Stansfield on THAT Cretzschmar's Bunting and how his euphoria was almost immediately followed by a realisation that visitor numbers to his patch were about to skyrocket.