Hope you get him soon! Twenty years of experience dealing with predators-they will continue to come until they are either stopped by trapping and/or death or there are no more birds for them to graze on. The only exception has been the pair of mink that came in June 2014. They hit hard on a Sunday morning while we were gone to church. Then they returned either late that Sunday night or early Monday morning to kill the remaining of the 45 head that were in the group that they hit. They have never returned-now 4 months later.
We have had issues with coyotes, foxes, bobcats, coons, opossums, chicken/rat snakes, water turtles, skunks, hawks, stray dogs, mink and a thief. Chicken is on a lot of menus-even mine! LOL.