" 'Watch the window?' What wi.........."

Thump!  Complete knockout; prostrate on back, wings outspread.  Me inside the patio windows going "OOOOOOOOH!"  and then fetching the camera in case a cat came (??!!) 

Here we have recovery, swiftly followed by a natural reaction to a big fright.  The victim took off after a couple of dazed minutes, well before the cats had arrived.