My husband has mentioned to me twice now that in the past couple of weeks he has found some eggs with cloudy, tan and even greenish whites. I haven't seen any other than some cloudy ones, I've assumed that is from them freezing in the coop before being collected. Their diet right now is basically only layer food with the occasional "treat". Home made bread, an oatmeal mix I warmed for them with some pork, raisins, lard and corn meal (Sounds yummy! LOL), some scratch, a handful of cracked corn and, some fatty pork every few days. Not much in the way of greens because, well, we aren't even eating many. They have been "cooped" up in their coop and run for weeks and, they only go out into their run for water even and have no interest in going outside the run, into the snow. My biggest concern is....there have been starlings in their coop and run a lot over the winter. We just can't seem to keep them out. They get in the run, then into the coop. (They get in between the run door and door jam....it is a dog kennel re-purposed). I am wondering if my chickens have caught something from the starlings. They all seem very healthy. They grew back all their feathers after molting (I had a feather picking problem but, everybody has all their feathers now!), they eat well, are active and I'm getting 6-7 eggs a day from 8 hens.