I have a shed for a coop along side our tree line (old pic). It has a sliding glass door. Our chickens are free range so it sits open all day. We put them away before dark. We have had issues with raccoons in the past. A raccoon is occasionally seen during the day inside eating the food and eggs). Can I have a radio playing (talk?) 24/7 to keep them from giving inside? Maybe a scarecrow too?