Unfortunately, foxes come back. A fox or foxes killed 22 of my 24 babies the night of June 14. At least one returned right after dark on June 15. Wonderful Husband waited to see if Mr. Fox would go into the trap, but it chose to pace the fence looking for a way to my two roosters. Hubby shot the fox.
In August we were sitting outside watching for shooting stars when we saw a juvenile fox. Hubby killed two in two days. I saw one more. We figure the fox family has been reduced by one parent and two babies. At least one parent and one half-grown are still here.
I spent most of my Summer and Autumn clearing "hiding places" and reinforcing fences. I *know* it is a matter of time before another fox visits. I get up in the middle of the night and peek out windows. I even had a dream that Hubby walked into the dream and said "Wake me up. We need to go check on the chickens." When I woke him, he jumped right up and we went to check. We saw nothing, but we like to think we scared the crud out of something!
Oh, another thing: on another thread someplace on BYC, a man suggested pieces of cloth sprayed with aftershave or colonge to leave a human scent all around the yard. Predators smell the human, but can't see the human, so they get nervous and back off. I went to the Dollar Tree and purchased the stinkiest men's bodywash. My children put drops of it at different spots around the chicken run. They reapply it after a heavy rain. Gives the kids something to do to not feel helpless about protecting our pets.