We have three hens, two light brahmas and one bantam. They lay between 1 - 3 eggs per day. They are in a coop most of the weekday, out for a couple of hours each afternoon and all day Saturday/Sunday. They get along, their water is changed daily and they are eating well - organic layer, bugs in the yards and occasional kitchen scraps and treats (boss, meal worms, vegetables, oatmeal). They have access at all times to oyster shells and grit. This past Saturday, as I was cleaning the coop I discovered an egg that was outside the laying box. I accidentally punctured it with my pitchfork. While I was tending to other matters, one of the hens started to eat the egg. I got her out of the coop, finished cleaning and thought that was the end of it. Yesterday one of the eggs had a strange hole at the very top of the egg - it didn't really look like had been pecked, maybe just deformed. Today, when I got home I found one egg totally smashed open and empty. How do I curb this behavior? Squirrels also get into the coop during the day when the door is open. Could they have eaten the egg? Any advice welcome.