Why do some of my eggs stink when they are cooking? I can't eat them, it grosses me out. Coop is clean, eggs are collected daily, they are eating a store bought feed for layers, occasionally free range. No odors in my fridge to absorb. I have 2 Rhode Island Reds and 6 Easter Eggers. They are approximately 7 months old. My family is complaining and I can't hardly give eggs away because of it. It's driving me crazy! I've been told it must be the feed. It is a feed that comes in pellets and contains some kind of calcium because I don't have to supplement with oyster shell. Before I figured that out I had offered them oyster shell also. Can they get too much Calcium? Also, some days it seems their poo smells especially bad. Help?!