I have 3 hens that are laying right now. Typically 2 jumbo eggs and a large size egg. So I go down to check for eggs today and I find a jumbo egg and a tiny egg- maybe a tad smaller than a bantam egg. My hens have always laid good quality, thick/ hard shelled eggs. Never any problems. Then I get this tiny egg. A fluke?? What's going on there? Anyone?