I'm fearing the worst. I have six three month old Royal Palms. I just recently put them in a larger pen. No other birds have been in it before them. A week later, one of the poults has swelling on both sides of her face. When pressure is applied, mucus and bubbles come out of her nose and seep from her eyes. I've isolated her from the other poults. She is not lethargic, is eating and drinking well, and is active. The only other marked difference in her compared to the other birds is that she does not roost right next to them. She isolates herself at night. Any help is highly appreciated. I've been researching online and the results are discouraging. If she does have MG, will she always be a carrier? Do my other poults now have this? Should I cull her?