My adult chickens are a year old now and my two d'Uccle girls seem to have stopped laying eggs, both of them, at the same time. One was broody on Saturday. I caught her sitting on 4 eggs in the nest box. I took the eggs from her just before roost time (their nest box is outside of their coop) and the next day she acted normal again. But, I haven't gotten one single egg from her or her "sister" since that day. DH and I have looked everywhere in the run and we cannot find a hidden nest. So, what gives, are they about to molt?