I went out to feed my chickens this morning, and I noticed something wrong with one of my 4 year old EE's. She likes to talk and has a deep-throated voice, but today she sounded like a dying duck mixed with a bugle. I've never heard a noise like it. It fluctuated quite a bit too, almost like it was about to break at any moment, and very husky. I know it isn't wheezing, because it stops whenever she isn't chattering. She doesn't appear to have any difficulty breathing either; no gaping mouth or bluish comb. I tried offering fresh water to her, but she wasn't thirsty at all. She's eating fine. I'm stumped. Is this something I should be concerned about? All her roommates are fine.