Europe

S1 E3: Earthflight departs on its grand European tour, using a host of techniques including taking extraordinary footage from microlights as they fly alongside imprinted birds. White storks leave Africa and struggle to reach Istanbul, the gateway to Europe, while cranes take an easier route over the monkey-guarded Rock of Gibraltar. The story takes an emotional turn as storks and swallows wait for their partners to return and indulge in a spot of DIY to impress. Finally, geese touch down in Svalbard to raise a family. To protect their young, a squadron of birds assemble to see off polar bears. With views of birds flying over the Loire Valley, London docklands and the bulb fields of Holland, this is Europe as never before.