Thank you for your help! She is not emptying her crop overnight, but has not eaten anything for the last 3 days. She also has not layed for the last two weeks, though the rest of the flock have slowed down too and are molting.
We noticed our one chicken to be acting different and not having energy about a week ago. We brought her inside and separated her from the rest of the flock. Gave her electrolytes and she drank a ton of water. Ask the week went on she has slowly been deteriorating and a lot in the past two days...