I loved how your poem flowed so nicely and the rhyming was well put. It was a very long poem, but you managed to lead back to a point which was nice. My favorite line would have to be:

"What would happen if its landing tipped the balance?
Breaking any possible silence?
Snapping like a twig,
Something so big."

I could try to give you a reason, but it mostly wouldn't make sense. The content is true, I'm a fan of the Chaos Theory, in which they often use a butterfly as an example, it worked for your poem very awesomely(forgive my lack of better grammar). All in all a very lovely poem.