I don't have any chipmunks or squirrels around, but occasionally I have a wandering skunk. I do have an infest of Magpies though. One day I let Jessee (RB Siamese) out for an early morning breath of fresh air and all of the sudden I heard this horrible squawking and screaming outside. I ran out and found that poor Jessee was getting dive bombed by 3 or 4 huge Magpies. She was scared to death poor thing. I think she was just too close in the vicinity of a nest of baby Magpies and both Mom and Dad and some help we trying to get rid of her.