We noticed that are 4 year old Buff had a large mass on her belly on Sunday. She seemed to be walking, eating, drinking ect...When we got home from work yesterday (Tuesday) she was laying on the floor of the coop and could not get her feet under her. We put her in a large crate and haven't noticed much improvement as of this evening. She is unable to stand without falling over due to the size of the growth. Any thoughts are appreciated.