I have a beautiful flock of Buff Orpington's, 12 girls and my Bruce (rooster). They have literally quit laying eggs, on an average day, we get 3, not good! They're past molting, have a good balanced diet from Purina, lots of free range time, good clean water, etc. We cut back on the feed, thinking maybe they were getting to fat, still 3 eggs a day. Any suggestions? We live in Fl, the heat has been unbearable, but, they have great air flow and plenty of shade. Please help!