I think when your dog arrives and see chickens there, they will both check each other out and it will just naturally be peaceful.
The first flock of chickens I started with were a few days old chicks, my dogs were curious, the chicks were curious, I let them be while supervising. Dogs smells chicks bum bum, chicks peck at dogs nose and dogs discover how yummy chick poops are and they just mingle.
However, one of my chicks were a rooster, he took no kindly to the smelling of bum bum from the dogs, he spread out his tiny wings and it proved that he and 1 of my dogs were mortal enemy.
Other than that, they are peaceful with each other, not hanging out, but they don't bother each other at all.