I have four brown leghorn hens in a small very sturdy coop and small wired in pen. The hens free range in daylight hours, but I have magpies who boldly walk through the open door to the pen and right into the coop to steal the eggs. Has anyone had success in getting rid of this problem. I was trying to think of a plastic funnel shape bowl of some sort that would fit into a nesting box and the egg would roll down and into the straw below, but don't know how to find such a container or how to fit into the nesting box.