I'm so sad for your losses. Your video tribute of Ralphie is beautiful...a life full of love.
I thought the same thing about the yeast too!doesnt seem like yeast should be in it to begin with should it? that could explain why they were all puffed up in the crop, yeast ferments and creates gasses.at least they are going to test it for you. i would also email them the pics of doug and the others with the swelled up crop so they could see.i know its to late for ralphie and noisy but hopefully it might save someone else from going thru the same thing.