Gallinarium
Crowing
They say that some have been bought as police dogs, but they don't even do any genetic disorder testing, so that fact has to be treated with caution.Okay, they don't have much info, but I'm guessing they're not breeding police dogs. In that case, I'd follow what everyone else says while also assessing the prey drive of your dog. If it's actually impossible to get their attention and you want more than not trying to play with/attack the chickens through the run wall, you'll want to invest in a prong collar and do some careful training with that. If you want them to just stay calm around them when they're in the run and the prey drive isn't that high then some high value treats (pure meat) or toys and patience is all that's necessary.
Thanks for the advice.