Identify this Bird

This week, while taking a walk, I saw a beautiful blue bird.  The blue was so rich, bluer than any alive thing I've ever seen.  It was flying back and forth between some small trees and brush. Accompanied by a kind of grayish brown mate.  The song it was singing went "tic tic tic tic etc" rapidly.  The sound was akin to a mechanical  sound.  I've got a couple ideas but none of them are a precise match.

This is a stock photo, not the bird I saw.  It looked something like this.