My brother has a few chickies that supply his family with eggs. Recently, he has been finding most of the eggs cracked and broken. What could be causing this? I have gone to get snakes out of his hen house, but they eat the eggs whole. I have never had chickens of my own so I cannot help. Most every farmer I knew in my youth had 'em, but about all I did was gather eggs, feed them, and enjoy them and their eggs at mealtime.