Well, I came home late this evening and went to check on the girls before bed and there was a shell-less egg laying right underneath the roosting posts. It look like one of the girls plopped it out while they were roosting. Our girls are 24 weeks old and 3/5 are laying now... the third just started this week. I am thinking maybe it is our new layer or perhaps our 4th started laying today?? They have access to oyster shell at all times, so I am hoping this is just a fluke and not a sign of calcium issues.... I have to admit it was a weird sight as a newbie!