I know we have gophers, and voles. None have stripes. Those (with stripes) would be hamsters. Gophers are HUGE, voles are small and eat the roots off the grass. Gophers just eat. Have you ever been sitting in your yard, enjoying your gardening efforts, when a plant started to jiggle and then 'whoosh' it's gone? Straight down, into a hole (that you had not previously noticed).
My point was that whatever it is, if it's a critter, it would not limit its efforts to a 3 ft. x 3 ft. patch.
Daisy