I wasn't having any eggs problems until January. I live in SE TX and the winters are usually mild, but this time around it gets to the low 30's and it has been rainy and windy. I only have 4 pullets and they are 8 months. They are also laying a lot less, last month i was getting 3 or 4 eggs a day, now i get 1-2 or zero. I get a normal egg maybe every other day if a get an egg, but most of them have issues. I have gotten shell less eggs, eggs with minor calcium deposits, i got one wrinkly egg, a couple of eggs with white sacs around them, and a firm opaque white odd shaped sac thing (im thinking a lash egg type thing, but its looked like egg white inside), and a small perfectly round golf ball sized translucent white sack with an egg white inside. They have also laid a few from the roosts, and i found a couple on the ground, which is not normal for them. I think the winter is causing it. They have no signs/symptoms of respiratory illness, but it seems like it could be IB, I had a 5th pullet who was euthanized on 12/1/15, she got sick on 10/27/15 with what I suspect may have been IB after getting some help/information on here. Maybe the other pullets have gotten it. Does IB live on the ground that long? Maybe they already had it? They are all eating and drinking very well. they forage and aren't lethargic at all. Edit: I have also noticed quite a few small fluffy feathers under the roosts and on the ground a lot which is also not normal.