Kind of like a Siberian Husky I had that was killing my barn cats. I had the dog penned, but my cats were used to my other dog that wouldn't hurt them so they would actually climb in the pen with the dog. That dog seemed to know if we were watching, even if we were in the house peeking out the...
I am really not sure that a shock collar will deter a dog... quills on a porcupine won't stop them from going after a porcupine again.
As far as electric poultry netting goes, I don't know if birds actually get shocked with it. Last year was my first year using it and I had it hooked up to a...