My hens are always locked in in the coop or run, I think it does live near by I've been hearing it since spring and have seen it flying over (before I got chickens). I'm going to try the CD thing.
I can't shot it for two reasons, one it is protected and two I am in the middle of the city. If I shot off a gun neighbors will call the cops and the city will know I don't have the highly unobtainable permit I am supposed to have for chickens.
Coop was wide open (I was taking pictures cause I'm a proud mama hen ) when all the girls went still and started angry clucking. I look up and sure enough I found this new neighbor on top of my garage.
Aside from keeping the run covered and the doors closed any othe way to deter it...