Before we got our cat, she was a neglected kitten living next-door to my sister and brother-in-law at an AFB near Boston MA, where the Navy was sending him to MIT for his master's in construction management. The kitten, being neglected by its' family, started to bring "gifts" to the back door of my sister's and BIL's quarters every morning. Small rodents, headless, because Oreo would eat the heads before bringing them "in." Since she's come ehre, she's an inside cat. However, from how she reacts when she sees a small rodent (chipmunk, usually) or a bird, she could easily go back to being a ruthless killer. If we had enough room for her to do this without any possibility of her getting run over by a car, I'd consider it.