One of my silkie hens (over 2 years old) has a severely swollen crop, full of air. I've been reading on here and yesterday when I found her, I brought her in the garage, gave her active culture yogurt (mixed with egg yolk) and have put ACV in her water. I pulled all food/water out of the crate over night and this morning she's worse. It's so large she can't walk and can barely stand. The funny thing is, she has very normal poop and has gone quite a bit since she's been inside. I can't smell anything sour around her mouth. I massaged it a lot last night and she seemed to really like that. *** OMG - I just picked her up and was feeling around and her neck seems sunken?? The bone is protruding towards the front, above her crop, there is a serious indention right before her head?? WHAT IN THE WORLD?? You can also hear rumbling in the crop?? Thanks for any advice. I'm going to try and get a picture!!