So finding him with a dead chicken isn't an instant foul, so to speak. I check to see if the body is warm, and if it's cold, give him the benefit of a doubt.
But he showed up at the gate with a live australorp hen in his mouth yesterday, and this is a pretty serious problem. We can't have him eating the chickens, and the goal of having the Airedales around is to have them loose while we're not there to watch to deter predators.
he's a young dog, about 1 year old, and is good with the pigs. He enjoys herding them, and is useful in moving the pig herd from paddock to paddock.
Next time he does a chicken in he'll get a chicken necklace in the time-honored farm dog cure for chicken killing dogs, and we'll see if that doesn't snap him out of it.