I have three hens that are rhode island red-white rock crosses. I got them when they were 18 weeks, and they are almost 7 months old now. They have daily access to fresh grass and I feed them organic layer feed. They started laying within a couple of weeks and I have been getting 2 eggs per day very reliably now. I only got 3 eggs once or twice a few weeks ago, and not since. I'm assuming that one of the hens isn't laying at all, but since they tend to lay while I'm at work, I don't know which one isn't laying. They all appear to be healthy, eat well, and behave normally. One of the hens is smaller than the others, seems a bit less active, and is still afraid of us, while the other two are very friendly. These are my first chickens, so I'm not sure if her behavior indicates that there is a problem, or if it is due to her being the bottom in the pecking order, and being more skittish than the others in personality. Also, I have read that chickens that are smaller in size are putting more into egg production, I'm not sure if this is the case with her. Should I be concerned about her? Should I be concerned that it appears that one of the chickens started and then stopped laying? Thanks.