Hey there, I have seen lots of posts about "wrinkled eggs" but nothing where they shortly after, stopped laying them. We have three chickens. One came with the house we bought and seems healthy. The other two, we got from a factory and they were in really shape (and still are a bit since this was only a couple of months ago). A while back, one of the factory hens laid a very thin shelled egg (broke when I picked it up). That only happened one time but then I started seeing one egg that was "wrinkly". This went on for a couple days and then another one was laying them this way too (though not as bad). I talked to a vet and he thought given that I had that thin shelled egg and that they were factory hens, it was likely calcium deficiency. I bought some layer feed and started feeding them that. I also boil 2 eggs per day and crush it up with the shell and feed it to them now as well as giving them the water the eggs were boiled in to really try and maximize their calcium. The only other food they get is a couple handfuls of sunflower seeds a day between the three of them and the occasional cabbage. The second chicken's eggs went back to normal. The other's got somewhat better, then they were better (normal) then she had a couple really badly "wrinkled" ones again. Then her next one was almost normal (only slightly wrinkled). It does seem like she's stopped laying altogether though. Now when I go out there are 1 or 2 eggs. I believe I'm getting one from one of the factory hens every day and the other one is from the chicken that came with the property (she seems to only lay every other day). So it seems like the one who had the badly wrinkled eggs has stopped laying altogether. I am worried she is "egg bound" but also thought maybe it's normal for them to have bad eggs before they stop laying altogether? They all seem perky and act the way they always do when I come in. Thanks!