If her crop was hard this morning, I would at least start with giving her coconut oil and massage to see if you can begin breaking up what's in there.
https://www.backyardchickens.com/ar...w-to-know-which-one-youre-dealing-with.73607/
https://www.backyardchickens.com/ar...w-to-know-which-one-youre-dealing-with.73607/