David Attenborough presents the amazing lyre bird, which mimics the calls of other birds - and chainsaws and camera shutters - in this video clip from The Life of Birds. This clever creature is one of the most impressive and funny in nature, with unbelievable sounds to match the beautiful pictures.
The video is cut short. The best bit is just after, where it impersonates someone's mobile phone playing the Seinfeld theme. Poor David couldn't keep a straight face...