I have a problem with at least one of my chickens. She’s been eating eggs out of the laying boxes. It’s hard to determine which one is the culprit, but if left unchecked, the habit will be contagious. Egg eaters are aggravating. I’ve already consulted local experts, Vaughn and McNulty, who told me the problem is likely because of a calcium deficiency. “If you don’t have oyster shells,” Vaughn said, “you could give them some Tums which are loaded with calcium.” After taking a Tums myself, I broke up the rest of the roll and mixed it in the feed.