My Austrolorp hen just passed away on Christmas day. She was found in the run hiding, sleeping standing up. I picked her up and she felt heavy and full. I brought her inside and got her in a warm bath with Epsom salt. I tried giving Vet Rx. She revived a bit and tried to fly out. That's when I noticed her crop was ballooned and mushy. I instinctively knew to massage it. She was standing up and seemed to want it done. Then I got her in a small cage after wrapping her in a towel to dry off. I researched online and I self diagnosed her with sour crop. I saw a video where the guy had a chicken in the same boat, and he said to tip her down and massage her crop. His chicken streamlined the contents out like a geyser! and then she got better. So I picked her up and tipped her a bit.. I was using a large bowl to catch anything (It was too cold to be doing this outside) and sure enough.. she started purging everything. I thought we were gonna save her! She was so lethargic after puking it out. Eyes closed. Then I tried again. She spewed and shook her head at the same time and it went everywhere. Then her neck completely went limp. I put her down on a towel to rest. That's when I checked for breathing and she had passed away. I felt so hopeful and then so destroyed. She was only 19 months old. I don't think this method of tipping them down and massaging does anything but kill them at this point.