We lost our first chicken out of our flock that we started back in February. I believe she had sour crop and I kick myself for not seeing the early symptoms. I believe by the time we caught it, it was just too late. She was laying on the ground, completely out of it, weak and lethargic. Her crop was swollen so big she could barely stand. We tried massage and she ended up vomiting a very very large amount of horribly smelly brown liquid. Once she was empty, she was a little more perky but still really weak. We gave her ACV water, but by the morning, she had passed. I'm just curious if anyone has any preventative suggestions? I don't want to go through this again. Their run, coop, food is all out of the weather and kept dry. They don't free range during the winter. I gave all my hens plain yogurt today and ACV water. Any suggestions appreciated! Thank you