I have 2 older adult male emus, around 11 years old. Recently I have gotten 2 new emu chicks that are now around 6 months old. I kept them in a smaller pen around the adult males to let them get used to each other for 2 months. The adults have always lived peacefully in the field with my 4 pot bellied pigs and 2 dogs. Once I turned the emu chicks loose in the field with the other animals the adult emus have become very aggressive toward my pigs and dogs. They will not let them leave the barn and chase them anytime they do. My pot bellied pigs and dogs are now terrified to leave the barn. I thought this would be just a phase that would pass but it has been 3 weeks now and it isn’t really improving. The only thing I can think of it that the older males are protective of the new chicks? Any other advice or ideas?