Hi this is a bit of an emergency. I have a brown hen (not sure what kind) and today she seems to have an air bubble under the skin on the right side of her breast shoulder area. I'm not sure if its her crop or not. I touched it and it appears to be entirely made up of air. I can see quite clearly because shes going through a bit of a molt. Her comb was a bit purple up by the tips, and she spit up liquid when I picked her up to examine her. I really need help! Should I pop it to see if it deflates? Please reply! Roman.