My dog lives right next to the run.Today my dad was out with tucker, just reading on the porch. Whenever the chickens went into the garage, Tucker chased them out. He stopped as soon as they got out. Also, he was off the leash and the chickens were free ranging, and he chased one of them. But he definately WAS NOT going for the kill. He can run fast when he wants too, and he was just leisurely running. And i could get his attention away from them. should i take that as a good sign?
Baby steps being made. Dog is showing a level of restraint in not going all out for chase. Regardless of speed, dog or even you, has much more endurance than a chicken of any age even if chicken is a jungle fowl. Smart chicken when pursued would up and out of dogs reach but smart is based often in surviving unpleasant experience. Work on getting dog to stop chasing. If dog has seen you shoo a bird from garage or otherwise regards garage as territory then that is not so bad but even that will need to be worked on to control.
Can you get dog to engage in some other form of play with chickens present? This would be a step to get dog thinking birds are just part of landscape.
Also when out with dog and birds, avoid your fixating gaze on birds. Almost all dogs selectively breed to key in on what we are looking at. Try to avoid looking at birds directly even when with them.
Expose dog to new scents or other stimuli when it is with birds. Effort to make chickens old hat.