Mine go TOWARD our dogs if they're outside the run - they've decided the dogs are safe. If a visiting dog comes into the area, they run away from it. They must have pretty good hearing, because they're quite vigilant about noise - a crow, a car going by - they stop and listen to decide if it's a threat, and then go on with their important chicken business.
They are most definitely not afraid of me. If I walk into the run while they're in there, they come up and peck at my shoes, and if my Golden Retriever is in there with them, they peck at her!