I would get pup into a daily routine where you take it off property for extended activity to wear it down a bit. Then bring dog back while on leash and walk perimeter of property multiple times. Walk to middle of property, then approach boundary before stopping. Repeat. Do this with chickens present. Get dog interested in non-chicken stimuli. Best results I have had avoids use of outright punishment. A gentle tug and subtle verbal command is what I want to direct interest away from something. Some training may need to be done off property to get communication going. Get pup to play when chickens around but have play involve something other than the chickens. At some point you want the activities off the leash. Dog needs to respond appropriately by that time.
Dog may need to be 2 years old before interest in chickens drops so dog can be with chickens without supervision. Most, but not all, of my dogs kill at least a couple chickens before the dog settles in role as a protector. For me, the dogs require at least as much time as the chickens during the first couple years. Thereafter the dog syncs up with me and chickens so we all get along without killing / deflowering the fowl.
Dog may need to be 2 years old before interest in chickens drops so dog can be with chickens without supervision. Most, but not all, of my dogs kill at least a couple chickens before the dog settles in role as a protector. For me, the dogs require at least as much time as the chickens during the first couple years. Thereafter the dog syncs up with me and chickens so we all get along without killing / deflowering the fowl.