My worst nightmare was realized last Monday night. My son and I went out to our coop that houses 10 hens, 3 peahens and 1 peacock to collect eggs around 5:30pm. All was well and normal everyone was as happy as clams. I have an interior light to boost egg production in the coop and I'm sure all of you know that it also boosts activity and tricks the hens into thinking it's daytime. They all free range during the day and I will go out to shut the coop door when I collect eggs but due to the false daylight all my girls kind of mill around in front of the coop even though it's clearly night time and pitch black outside. Anyway, my son and I went back inside and I gave the girls a little more "outside" time. Went back out 30 minutes later to shut their door for the night and half of my flock was gone including 2 of the peahens. Thinking they just took off for some strange reason I serached for hours with a flash light finding nothing. Finally my lazy chunky English bulldog who loves our birds went outside with me to search and that's when she led me to the 1st of many areas where there was nothing but an explosion of feathers..... Something took 6 of my babies and1 of my peahens in 30 minutes. Totally devastated over this. I've had chickens for years and never experienced anything like this. Not a drop of blood and gone without a trace except for some feathers left behind. Everything I've read points to a fox. I'm just looking for opinions and if my suspicions are correct and what I should do to prevent this from happening ever again.