A year of blissfully happy free-ranging. About three weeks ago, a big hawk moved in - not sure if it is a Cooper's or Red-Tail, but I suspect a Cooper's. Found one hen dead in the woods, with a broken back, and one missing - I assumed a dog because I could not imagine a hawk chasing a hen into the woods. We secured the property perimeters to make sure no dogs got back in. On Saturday about 8:30 a.m. we heard a ruckus but did not think anything was amiss. 20 minutes later I went into the pasture to find a pile of Buff Orpington feathers, and many piles of Silver Laced Wyandotte feathers. On the other side of our electric fence we found the body of a SLW - her back was torn up and she was under a tree. I think a hawk hit an Orpington and lost it, hit a Wyandotte and lost it, and then hit Bertha, got airborne enough to clear the fence and then came down with her. I assume it was coming back for a meal later when I interupted. There is simply no way a canine could have gotten under my electric fence into the pasture, gotten a hen, and then come back out under the electric fence. I found one of my SLW with some damage - missing back feathers but could not find any obvious injuries. She would not leave the coop, would not eat or drink, and on Tuesday morning I found her dead. The Opringtons all seemed fine; this morning I found one dead in the coop. Aside from being absurdly distraught over my beloved hens dying, I am at a loss as to what happened to the last Orpington. Is it likely that the stress from the aborted attach 4-days earlier killed her; maybe she had an injury I just couldn't see or feel? Maybe there is now a horrible disease sweeping through my flock and they are just all going to die and my family will call me the Grim Reaper... I never expected to love these hens like this and it feels like my heart is breaking.