Was getting three lovely eggs per day from my hens. Over the last few days I am only finding one egg. Possibly two of them are laying when they are let out to free range. But this morning I found a REALLY odd looking egg. It actually was shaped like a tiny gourd. The shell seemed normal, just the shape and size was strange. Plus there was a broken egg, which looked like it had a rubbery shell. They have oyster shells free choice, and I have seen them eating them. Anything else I could do? They are acting perfectly normal, active, alert, etc. Weather has been consistent lately, routine the same as usual. What is up???? Any guesses?