She's turned 2 in March. Layed off and on for a while...but she's always been the worst out of the 4 hens we have. Of course she had the prettiest olive green eggs. They all pretty much quit during winter (even though we are in FL). And when they started up again we got a few eggs out of her and she has quit again. Haven't seen one in a couple of months. Is she deficient in something or in some other way unhealthy? Or is this just normal for some birds. Could she be done already at this age?