So a few weeks ago I got some hens about 2 years old. They had never free ranged before and long story short two of them developed sour crop about 2 weeks ago. Since then, I have tried every trick in the book. Oil, yogurt, red wine, massage, yeast infection cream, even antibiotics for a whole week. They are eating, drinking, and pooping completely normal, but their crops keep filling up like a water balloon. I am at my wits end with these two. I want so bad to help them, but I have no idea what to do at this point. I suspect the sudden change in diet and the discovery of grass is what started this. Anyone have any ideas or advice? Is there any chance this will clear up on its own eventually?