we are having the same problem, out of over 70 hens we are getting on average around 12-17 eggs a day. my barred rocks had not laid in over 3 weeks then day before yesterday we got 2 eggs from them. same yesterday. I found we have an egg eater in with the rhode island reds but dont know which one it is yet. the ameraucana's are molting, have no clue whats going on with the bc marans and delawares. out of the delawares we got 1 egg yesterday nothing for a week on the bc marans now last week 1 egg. we have upped their protein level, plenty of veggies, water, layer feed just no eggs. I think it has to do with the weather here, hot one day cool the next plus daylight time. who knows as long as they are healthy and happy, although I really cant afford to have slackers, feed cost too much here, 10.50 a bag for layer. and just to have them eat and eat and nothing in return, well dh said if they don't get lined out he is just going to get rid of all of them . and not have chickens anymore. so they have a month to pick up or he will get rid of them one way or another.