Hey Johny how many hens do you have? Do they get to free range? Are they kept with other fowl? Any way, hens will slow down egg production this time of year, usually more into the shorter days, I once noticed a slow down in production, and then saw broken shells and some egg in nests. With all I read about egg eaters...I thought oh no. Because little eenie was always in the coop, and i caught her eating some. Well, I couldn't understand why she would eat eggs s I separated her in an open broody box. After a week she had a tidy clean nest with five eggs in it. Hmmm. The loss continued until one evening when I almost collected a ginormous rat snake, totally involved in gulping down eggs. The coop was tight, but I had been leaving the door open for sunshine and fresh air during the day. Either way, it had to be fed to the buzzards, and i keep the door closed. The chickens don't have a ramp, they hop out the pop door onto a stump, 2 feet up. I was surprised but happy to find it before he got under a broody hen. Plus I keep the grass really short, snakes don't like to travel in the open if they can help it. But anyway, are your hens combs nice and red? Any competition for food? I guess you have to examine your flock and keep looking for the problem.