I have two 16 month olds and two 4 month olds living together. The younger ones are not laying yet and the two older chicken, who layed a little more than every other day, have not produced an egg in 4 days. Could some be misbehaving and eating the eggs? There is no remnants of egg anywhere. I checked and they are healthy with no problems. The weather has been nice and they are getting lots of sun. I have locked them in the run so that there is nowhere else they could be laying. Any thoughts? Has anyone had an egg eater? If so, was there any trace of it?