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. From the BBC.