Thank you guys!!! Well, You need description for a panning photo? LOL!! OK. I saw something like this in National Geographic once and had this in back of my mind. Was wondering how I could reproduce it.
I droped this leaf by hand several times on my half dried lawn to see how it flows, it seemed it was comfortable gliding sideways. Once I was sure of its pattern of movement, I followed it with my camera, with several tries I got one at 1/4 sec, f18. The sun wasn't too strong and had faint clouds covering it. Not much wind at all.
Hope this helps.
-Cat