Thanks MotherJean! I have tried almost all those things (we don't have pedialyte. Will try to find out what that is and get some).
She is a sick three year old hen (with sour crop? not eating, weak, light and bony, repeated liquid in crop, green diarrhea). I have tried isolation/rest, massaging crop, ACV/electrolytes/rescue remedy/tiny bit of GSE in water, and also offered her yogourt with garlic and porridge/yogourt plain/ applesauce/bread with olive oil/plain olive oil etc. (all of which she wouldn't eat?) and more... I feel no blockage but there may be something. (If there is blockage the only thing I can think of is corn cob?) She is worse today, weaker and weaker, althougth yesterday she ate some bugs when I took her over to the manure pile (she was refusing everything else and I thought something is better than nothing) although today her crop has refilled with fluid and she is miserable. She has had enough brightness in her eyes before that I haven't been willing to cull yet but it may come to that if she is suffering and I can't find anything. It's been days now.
I would like to understand who has had success with sour crop and how. The information I'm finding is so confused. Will try posting for info.
I would try pharmaceutical drugs at this point for her if I knew what/how. My husband could bring them back from town tonight if it is not too late for her. Any thoughts anyone?