I think it's just the soft shelled eggs they are eating. They are getting the layena (sp?) crumbles and pellets, they have oyster shell and grit in a feeder tray, and they get treats ranging from lettuce/cabbage, scratch, bird seed occasionally, and mealworms. Sometimes leftover meat. Plus most days they free range all day.
Their coop is 6' x 8' with an additional run underneath, and 8 nest boxes, and two 6' roosts. We want to put another roost in, but mostly they like to all huddle together on one. I've counted 8 squeezing in on the one, and only two or three on the other.
We have 12. 11 hens and one rooster. He told us they were between 2-3 yrs old, but not sure. We got them the 31st of Jan, and they were in a temporary coop for 2 weeks while we got theirs put back together. We went to buy the coop, and the people didn't show for the chickens. Thank goodness we took the dog kennel with us to transport them in, as he wasn't sure if they would or not. He also told us that they were all brown eggs, but the Ameraucanas are laying beautiful blue/green eggs. So they have only been in their coop again for a couple weeks, and they have had a few days where they weren't allowed to come out due to the weather.
Could it be the girls that are molting that are laying the soft shelled eggs? This just started on Friday (I think). I haven't seen any signs of it before that.