I live in the deep woods of the Florida Panhandle. My wife and I have a fenced off garden back in a natural clearing in the woods. In that garden, we have a big hen house (with it's own run), covered on top with fencing, triple fenced, buried fence, 2x12's in the ground, brick floor........etc. Predator proof............so I thought. Went out at midnight to check on the girls tonight and almost stepped on a large Cottonmouth right inside the door of the pen. I shot it. Anyway........are there any suggestions about prevention before I go buy $100 worth of 1/4 inch chicken wire. In addition, I know it was there for eggs, will the hens try to fight off a snake if confronted or keep their distance?