I had two of these previously, which quickly sold, and was happy to find another, as I think these are amazing. I think this was most likely part of a singing bird cage or cuckoo clock or something similar, where some sort of mechanics would periodically trigger the wings to raise and beaks to open --perhaps simultaneously producing a chirp chirp! 

One could just stick it in a little vase or small planter, to hover over a succulent, say. It's  a fairly delicate thing but the wings still raise and beak opens if you raise its tail. 3 5/8" long x 3/4" wide; 4" tall including post.