Mine is no better, either, and I didn't mean to hijack your thread. They just seemed to have somewhat similar issues.
She still sounds the same, and she is dirty like crazy. That is new. The back half of her body is brown from about the mid-wings to her tail. Her feathers are hard and crinkly. The best way I can describe it is that she's like a duck that's been washed with shampoo then allowed to play around in dirt and mud before she reoiled her feathers.
That led me to check her oil gland. It looks normal, but she screams when I get near it even though she's typically pretty docile. I don't know if that's because it's painful or if she doesn't like me meddling around with her private parts, but I can't help thinking it's the former because of the way she's reacting.
@casportpony , @Amiga , @Miss Lydia , any advice?