What else flies?

Isaac and I walked out of preschool after dropping Charlotte off this morning...we saw an airplane, which he called a helicopter. He was fascinated with it as long as it was in view...it flew away and we got in the van.

As I am buckling him in the van, he sees a small flock of geese flying out his window. He says "Look, Mommy! Geese fly too!"

I said "Yes, they do...what else flies?"

Isaac says "Helicopter!"

I say "Very good...can you think of anything else that flies?" (thinking he'd think of a butterfly, or bug of some sort)

Isaac says "The Batmobile!" ... such a BOY :)