In the television series "The Life Of Birds" with David Attenborough, the Superb Lyrebird is giving amazing imitations of machine sounds like camera shutters and chainsaws. The male Lyrabird has learned to mimic sounds of the forrest to impress the females, and as human machines are becoming a part of everyday life, then so are the sounds. Watch the video, which is now famous and in newspapers such as The Daily Mail. (Thanks to Sune for this one.)