Okay, I noticed some not-healthy looking feathers on my adorable Pola Negri, so I pulled them back and took a look. I saw a bunch of little yellow bugs running away from me. She was promptly dusted thoroughly with DE. One of her friends, who has been blind for the past few weeks with pus (long story) is completely covered with the same yellow bugs. Are they lice, mites, or what? How would I treat this? I have a county fair coming up!