I spent five days away from home last weekend, and my chickens managed to get out of the chicken run and spent the time in the forested area. They seem well, and the forest floor is completely pocked with holes where I imagine they were digging for bugs. They have not been laying well since (six chickens, two eggs in two days). I do not know where their source of water was, though the property is adjacent to a swamp. My question: does egg production usually drop when feed or water are scarce?