This may sound odd, but I was wondering if chickens' egg laying cycles change to match their roomies' cycles. Much like women who room or work together often have their cycles slowly change to be similar to their work/room mates?(sorry if this is TMI for you guys! LOL) I was down to 1 hen who stopped laying in November. When I introduced 2 laying rescue hens, she suddenly started laying on a daily basis! Not once a week, then twice a week etc, but 1 per day just a couple of weeks after I introduced the new ones. BTW, the rescues have found the nest and I haven't found an egg outside in a week!