I'm wondering if anyone has encountered this before and if so, what are your thoughts. Our older flock (about 13 months old) has 3 males and 10 females. They've lived in perfect harmony for the past year but in the last two days, one of the males has been chasing around another male and literally making it stay away from the rest of the group. I'm wondering if this is going to be a long term thing or just a pecking order type flair up? Thanks.