My flock are all about 8 months old. 1 BO roo, 2 BO pullets, 3 Red Star pullets, 1 RIR pullet, 1 SLW pullet, 1 unknown maybe Delaware pullet, and 1 Olive Egger pullet. My mid October, all 8 ladies were laying about 6 eggs per gal per week, except the Olive Egger and she would give me an egg one morning, an egg the next evening, then skip a day or two and start the process over. Around the first of November, she became an escape artist, and her egg production stopped. She wouldn't leave the other chickens still in the pen or root around in the compost right beside the pen and I figured she was hiding her eggs, but I couldn't find them. The pen is now more secure and she can't get out and has been for a couple of weeks, but still no green eggs. There is no evidence of egg eating, she doesn't act like she is egg bound, there is no illness in the flock, she just quit laying. Is this common with Olive Eggers to stop laying before they are a year old and to be so erratic when she did lay? Even with the shorter, colder days, I am still getting 6 to 8 eggs a day from the rest of the girls. She will find herself in freezer camp soon if that is the case.