After 18 months with the flock, we recently caught and butchered the rooster, as he had become VERY aggressive, and you could barely enter the chicken house or run without being armed with a plastic baseball bat. Since then (about a month ago), the remaining 9 hens have almost stopped laying. Where we would get 5-7 eggs daily, we now get 1-3. They are in a completely enclosed barn and run, so there are no predators or other environmental changes, other than they no longer have a rooster. These are not our pets - we don't handle them. Could it be that the loss of their masculine protector had a bigger effect on them than we contemplated? We are considering looking for another rooster that is less aggressive, but think that we might get duped by someone that is trying to just unload a problem rooster. We have 3 barred rocks, 4 RIRs and 2 EEs. Thanks for any suggestions.