I had folks tell me you can put a golf ball in the chickens nest if you think you have snakes taking the eggs. Over a period of time the golf ball will smell like an egg to a snake. We put golf balls in there to mark the nest (free range, huge area). The other day one of the golf balls was gone and there wasn't any eggs gathered at that nest that day either. My wife said she checked the nest a couple of hours before I looked and saw the golf ball was missing. That was a few days ago. The nest is in a stall with no access to anything but chickens. Any thoughts?