What does it mean when a chicken opens it's mouth and bends its head to the side. I know I read something about it relating to the crop, but I can't remember where I saw it. I figured someone here would know. She seems healthy otherwise. She's growing, eating, drinking, pooping and her crop doesn't feel too large or hard. We've had worries in the past with her because her crop was so large and hard, but it was empty in the morning, so she's just a little piggy.