This summer we are having heavy fox action as I am breaking in two pups to be poultry guardians. The pups are very fast and I am trying to condition them to be harder charging than their father and willing to chase farther than their mother. So far working very well. I am keeping the dogs in house during night and sleeping with windows open. When chickens stir we go out together to run fox off with lots of my encouragement. Multiple foxes and now a juvenile Great-horned Owl are involved. Pups doing really well!