The flash let you see the wings, but when watching it the wings never stopped as it was constantly hovering. But thanks to the camera, I am able to identify it as a striped morning sphinx moth to be exact (thanks to this site too).
A few minutes later, a second moth came by. Here's a picture of them both:
They don't look the same here, but remember you are looking at the top one from below.
This was so cool! I never even heard of hummingbird moths before, and here they are. And in a funky coincidence, it turns out that They Might Be Giants (my favorite band) have a song about hummingbird moths on their new album, released today! So did these moths come to remind me to buy the new TMBG CD? I think so...