She stood still, and a dark shadow that he could not see flitted across her face.
Behind them both, a shadow flitted across the roof, followed by another.
And then they would see the grey shadows flitting about.
A large shadow flitted past the window with a sharp buzz.
A shadow of that old familiar sadness flitted across her face.
The first shadows flitted across the curved surface of the 6th screen.
Now, on the far side of the little clearing, silent shadows flitted through the trees.
Wings beat the air, and a dark shadow flitted across the ledge.
A long, black shadow flitted beneath the glare of an electric light.
A shadow flitted through the opening and was gone.