This is the third visit,he seems to spray do they do that like dogs to mark anyone know?I washed my whole coop out and the smell was gone now tonight he must of come again,the coop smells again around the the door,not inside I don't think hard to tell at 1am in the morning.The coop it is coming into he killed all the chicks and seems to only beable to get what is on the floor.How do I catch him?