After 3 nights of non-stop nighttime predator patrol, with absolutely no signs of anything, I decided to call my neighbors.
I really feel that this was a dog attack for 3 reasons:
1) no birds were actually eaten, so it wasn't a hungry predator
2) neither THE culprit nor any other chicken predator has returned as my baited traps have remained empty and still full of bait every morning
3) I just found out that I have some new neighbors with 2 large dogs that have been spotted roaming the area during late night/early morning hours (between 1-2am)
I'm unable to "visit" my new neighbors today, but plan to do so tomorrow. I've chosen to give all of my neighbors fair warning that if I see/catch any dog on my property, it will be disposed of (in one way or another) and will not be returning home to them.
Unfortunately, if I ever do catch the exact dog(s) that did this, I'll be unable to get compensation for my birds. But I
WILL get justice for them.