The lyre bird attracts its mates by doing accurate impressions of the other birds in the forest. When they are put an urban setting though, they quickly start copying the other noises they hear instead though, whether that means cars, construction equipment or camera noises. Here's one doing its thing at the Adelaide Zoo.
On an interesting side note, a group of lyrebirds is known as a musket. For more cool animal grouping names, this Environmental Graffiti article may prove useful.