It wasn't a leaf, it was a very large, very pretty moth, the likes of which I had never before seen.
Of course I didn't have my camera with me, so I had to hurry home to fetch it (good thing I was wearing my speedy gold sneakers).
I apologize to the photographers out there
but isn't this a fantastic moth?!
It's a luna moth.
I've learned that it lives only 7 days and is one of the largest moths in N.America
(wouldn't really want to run into one much bigger than this)
with a wingspan up to 4 1/2 inches (11.4 cm)
Just had to share this with you.