This is one of my favorite birds, and the major reason because it is well known in the bird world as the "King of Song."
It is the very best of the mockers and can duplicate the songs of at least 30 different bird species in rapid succession. Each phrase of the songs can be repeated two to six times, but it is usually three times.
Add to this a variety of sounds from whistles to barks, and you may even hear the tinkling sound of a piano or the sound of a squeaky hinge.