Windy day wing flexing on AXN floater RC plane

I thought I could see the wing of my AXN Floater flexing in hi-speed flight on a particularly windy and turbulent day so I strapped the keychain camera on and this is what I saw.
It does flex a bit but mainly in response to the turbulence. I'm surprised at how little flexing occurs as a result of flight loads - and that landing (oops).