I found the remains of a hard-shelled egg in the Finsterium the day before yesterday, which is pretty good news. Unforunately my shipment of liquid calcium has been delayed, I'm now completely out of it, and I found a soft-shelled egg yesterday. One (or more) of the hens is laying eggs, and depleting their calcium. I looked around in health food stores today for a possible replacement, but even the products that are vegetarian, wheat-free, and other things like that, still have fillers, or flavors, or unpronouncable things I don't want to give to the birds. So the Finsters are now getting sprouted seeds with lots of grated cuttlefish bone mixed in every day. The calcium in cuttlefish is not as readily absorbed as the liquid product (which also has magnesium and vitamin D3 for added absorption), but it's the best I can do for now.