I don't understand how this could have happened already. It wasn't THAT cold last night but it was rainy and a little chilly. I don't know the exact temp it got to. I didn't think I had to worry about it yet so I didn't even check the over night temp. Today it's about 55 and rainy again. I'm in Oklahoma so it's about 82% humid today too. I feel so bad . My other 2 chickens are fine. It's just her.