We had ferocious winds today which knocked over the "coop" (more of a harem tent centered on heavy chain link panels arranged in a cube). As soon as I knew, I went out to make sure no one was underneath (no one was--whew!). There were a few eggs, and one with totally no shell at all, just the membrane, which had torn straight along the "waistline" an inch or so, to reveal a perfect interior and usual large orange yolk. Without exception, our shells are so hard that I cannot break an egg with one hand. I know there are no nutritional deficiencies, they get unlimited pellets (Layena?) plus goodies such as oatmeal, little tomatoes, grapes, blueberries, raspberries, tonight they actually got polenta made with milk and apple juice. These are happy, healthy hens that lay nearly an egg a day apiece, and always with a hard shell, usually jumbo or bigger. The corrupted cliche around here is now that the winds scared the egg out of her. Yeah, yeah, lol. Anyone have any experiences like this? Thanks.... I should add that we have a lot of wind here, and had another very short blast a couple of weeks ago, but this is the first time the thing has actually fallen over.