Hello! We are currently raising four chicks in a stock tank brooder in the garage. We have done this a number of times successfully. Two barred rocks 6 days old, two buff orpingtons 4 days old. We have the correct temperature, chick starter food and water. All seemed very healthy when we brought them home. One of the buffs seems to be being chased away from the feeder. She is smaller than the other buff, and it is the larger buff who is the most aggressive with the other three (chasing, pecking, etc.) Any advice would be appreciated, thank you. Julie