I have 3 Rhode Island Reds. I had to change their feed about 2 month's ago and they suddenly stopped laying. I had been getting 1-2 eggs a day even through winter and molting. I finally found a source for their original food about 10 days ago, but still no eggs. We live in central California and the weather has been rainy, but not terribly cold. They have an 8X12 ft. run with a coop in the middle. I removed all of the shavings and winter buildup and put clean pine shavings in the coop 2 weeks ago. Their coop is protected from the rain and wind, but still has plenty of air circulation. My girls seem happy, but are still spreading the crumbles all over the ground. Any thoughts?