Noise control groups have voiced their opposition, calling the siren "disorienting ... You know when a police car is coming.

But they were shocked to see the source of the noise was not a car, but a bird! Watch the video to see how well the bird mimics the sound of a police siren.

A police inspector has told the BBC how he was the first to be tricked by a bird mimicking the sound of a siren. Simon Hills said the two-tone impression had officers believing a car was faulty at ...