Until recently my hens had been laying 8-9 eggs a day. I have 12 hens, 4 of them are four years old, the other eight are 2 years old. This past week they dropped to 3 eggs, then 2, now I'm down to only 1 egg a day. I live in the south, so it is very hot right now, temps around 90-100, and very humid. Is it just from the heat? Or could something be stealing them. I've had trouble with squirrels, and snakes stealing eggs before, but I haven't seen any signs of an egg thief. Their going through about 5 gallons of water a day, is that too much for 12 hens and a rooster, could that be a problem? Any advice is appreciated. Thanks