The oleander bush behind him no longer rustled in the breeze.
The bushes rustled as if in the wind, but there was no wind.
Her body tensed as she heard bushes rustle several yards away.
The bushes rustled again; somehow they managed to sound impatient.
The bushes rustled smugly and didn't move apart at all.
The bushes rustled as if from the passage of a small night creature, a rabbit perhaps.
She leaned forward to have a closer look at them, then heard the bushes rustle bebind her.
A few seconds later they heard the bushes rustle.
The bushes on the far side of the creek rustled softly and, though the afternoon was still, the boys could see branches moving.
The bushes rustled, indicating that a large creature was moving toward her.