The Secret Life of Birds Brian Cox and Robin Ince are joined by guests including Katy Brand, Steve Backshall and Professor Tim Birkhead to uncover the secret life of birds. They'll be looking at some of the extraordinary and cunning behaviour exhibited by many species of birds, both male and female, in an effort to attract a mate. They also get a special visit from Brann the Raven, who takes to the stage to demonstrate just how intelligent some species of birds can be. Producer: Alexandra Feachem.