First rule is to toughen and harden them as I do Abby and Willa, American Brittanys. They sleep on a concrete slab as depicted below.
KY Jon is spot on about "whoa". I taught Abby and Willa "whoa" on daily walks on the leash. "Whoa" is a command that supposedly anchors them in place. If they moved forward, I picked them up and stood them where the command was first given and where they were when it was given. It is the most important command and can save their lives. I liked the Hickox series of video, especially e collar conditioning. Willa learned as much from older Abby as she did from me in the field. Fourteen month old Snap, a French Brittany, is coming along just fine. I taught her whoa on a barrel and whoa board as well as on the leash. She was exposed to gun fire and birds at six months. She has hunted with the big dogs for woodcock and quail. Abby is aging out at 14 this coming January and Willa was 10 this past May. They are 99.9% pets but know what to do when the whistle blows. One thing Hickox stressed is basic obedience such as whoa and come, are best taught in the yard where you live. Don't mix locations where you put them on birds with where obedience is taught. It's field vs. yardwork locations. Gil
[Linked Image from i.imgur.com]