I have always wondered if I could swap out the birds for the butterflies so I tried it. It works but they are grouped in a square instead of a line. So, when they fly around they do it in groups and it looks strange. So, for all of you talented people, I was wondering if you could mod them to fly like the birds do. There are a few different ones. Butterflies, dragonflies, hummingbirds. Just a thought.