One of my Ameracauna hens has an enlarged crop. She is eating, and passing stool, so I don't think it's impacted. The enlarged crop makes her appear as if she has a goiter. Sometimes it affects her voice, and I notice her moving her neck around as if she's in a little discomfort. Her mood and activity level are good. Is this something I should be worried about? Is there anything that can be done? Thank you!