How is the new pip doing? Has the behavior improved at all?
Better, I think! We are keeping him in the kennel at night, which helps in two ways. One, he can't get into any mischief, and two, he doesn't run off all his food we are feeding him. He appears to be gaining weight, albeit slowly.
We are not entirely sure he was actually killing chickens. When we were finding them, it was extremely hot here, like heat indexes of 104. The neighbors chickens were dying from the heat, and I think he was dragging them up already dead, not killing them. We're working on basic commands right now. He's been a challenge, that's for sure! Thanks for asking.