Stimp: Thanks for your reply. Since we don't have anything resembling animal control in this part of the county, the local sheriff advises property owners to do just as you suggested. I've got my revolver loaded, and my flashlight batteries are fresh.
I'm still feeling sick about finding my birds. The dogs didn't just kill, they tortured, disemboweled, and mutilated the first rooster, and because of the blood patterns in the second pen I'd say they tortured, tortured, tortured, mutilated, and then killed the second rooster. They didn't even have the decency to eat him.