Didn’t manage to get the camera in time to document it but, the score in my neighborhood is Coopers’ Hawk: 1, Chipmunk: 0. Weird thing is that in 3 years of looking, I’ve never seen a Cooper’s Hawk* in my neighborhood before.
*Possibly a Sharp Shinned Hawk, hard to tell from the angle I was viewing it at.
The Lazy Reconnoiter 