I have four hens, a RIR, Cinnamon Queen, a Barred Rock and an EE. Three of the four started laying within days of each other at about 21 weeks. My EE has not laid yet. Does this breed take longer to mature? I got them all at the same time and was told they were all about 2 weeks old when I bought them. Is is possible that she will wait till Spring to lay, even though the others are still laying? I put a light on the coop at night to extend the daylight hours, but still no eggs from her. I expect her eggs to be blue/green am pretty sure that she hasn't layed yet. Also, about the second week that the first two started laying we had a cold rainy night, in the morning, much before I was expecting to see eggs, there were to eggs in the roosting area, one was without a shell and the other had a mushy shell. This never happened since. Any thoughts on why this happened? I thought it would not happen since the first week or so of eggs were good quality. Could it have been a change in weather? Too cold for them? Not enough protein? Any thoughts?