Our Australorp *just* started laying, in fact, the first one we actually witnessed her drop was last evening, and it had no shell at all. Just the membrane holding everything in. Then today as I was searching the coop for eggs, I found another shell-less egg in the litter that had been stepped on. Im assuming it was from the same Australorp. Is this normal at first? It seems like I read somewhere that it's common when they first start laying, but now I can't find that information. Also, they have all been switched to layer feed, and have oyster shell on demand.