Butterfly Flight Montage

I tried to get some photos of butterflies in flight. It's fairly hard to do, since the butterflies move so fast. I can't follow them in the viewfinder, so I have to focus on one on a flower, then anticipate where it will go when it flies off. 95% of the pictures were out of focus (as are a lot of these) and most were blurred by motion, although the shutter speed was 1/500 or faster.