Swans Mystery Of The Missing

One Of Natures Greatest Unsolved Mysteries The Bewicks Swan In Dramatic Decline No Ones Known Why Until Now In This Groundbreaking Film Science Adventure Cutting Edge Tracking Technology And Innovative Filming Techniques Give A Privileged Insight Into Their Hidden World Follow Extreme Sportswoman Sacha Dench And Awardwinning Wildlife Cameraman Benjamin Sadd As They Follow The Swans For A Year Trav