That's really cute, a reverse Moorhuhn if you will! I like that you gave us a more "pacifist" option - but even when striking the bird, you did add a cute animation all the same. The fast birds are jerks, for sure! I took several runs for a perfect one, as the fast birds kept getting zapped! Poor worried cloud-chan.
I did get a browser crash on my first play, not sure why. I was just zapping a bird by accident and then it crashed. Not affecting my rating though, just wanted to mention it!