We have a 3 year old shepherd cross with a lot of energy. We've had her and chickens for a month. The chickens have a coop and fenced in area. Sometimes the dog charges at the fences but it hasn't fazed the chickens once. We are considering guinea for the summer and will let the adults free range during the day then go to a coop for the night. Would the guinea likely fly away from the dog or fight him when they are awake? She would not be off leash at night when they are roosting. Thanks for any info.