Burglars Hate Cameras
Installing a camera, or more than one camera, is a great idea, since would-be thieves hate them and for good reason. If you catch a thief on camera you have much more chance of them being caught.
Also cameras can deter burglars from attempting to enter your house in the first place.
Burglars don’t want to get caught on CCTV. Also they aren’t going to know whether the camera they see is even real or a decoy. Even a sign saying there is CCTV should be sufficient to deter burglars.