I got a cute story!
My sister sent me a few things for Christmas and one of my gifts was a small bird that can be placed on the mantle of my fireplace. It has a motion detector which makes it chirp and it sounds just like some birds that fly around outside and feed from their feeder.
My dog can make it chirp by barking at it too.
So now Ibiza barks at all the birds she sees trying to get them to chirp...I find it funny to watch!