I have a 6 day old Barnevelder with a crop that feels like an over inflated balloon. It looked big last night and I figured she was just filling up for bed. It was still distended tonight so I tried turning her over and gently massaging it toward the beak and nothing came out. It feels like air, not food. She is completely active, she's been eating and drinking no problem. This is my first time with chicks so maybe I'm just overreacting. If anyone has any ideas I open to suggestions.