mine because the owner never kept them in
their yard.

Then the owners had a Packer party
OMG---I am still laughing about that one! I woulda peed myself too! Nothing like THAT kid of proof! Kinda reminds me about when my dot "bit" a friends child that was visiting. Said dog greeted the sheriff at the door and he asked, "where is the dog that bit?" I told him that's my only dog, as she was sitting in front of him wagging her tail off waiting to be petted!
One thing you can do is what your instincts tell you to do and that is get electric fence. They make special hot fences for chickens that can be powdered by solar energy. I will be investing in that fence next spring a section at a time. It will let me put the birds out with out supervision and let me leave the coop open at night when it is hot.
This is exactly what I was going to suggest. They have predator fencing that keeps chickens safe too at Premier. I get their catalog all the time and there stuff DOES work! Incidentally, they also are the makers of that really cool waterer that we have given as a raffle prize at the bash. I have been toying with the idea of gettong some to keep my goats in. The lucky neighbor of mine found some on CL for half price!!!!!

She uses it all over her property for rotational grazing for her geese.
Later all...going to lunch today with a friend...then making cards for other friends! DAY OFF YEAH! TerriO
Sounds like these fences are good for "free ranging" the girls. I think I may have just discovered my Christmas present