Hi, I am almost 100% sure one of my bantam hens has a compacted crop. I have no idea how long she has had it. She acts almost completely normal, except for an occasional weird head bob. I have tried massaging and holding her upside down. She made these strange burp noises but nothing came up. I feel awful for letting this happen. She is skinnier then normal, so she must have had it for a while, and she still tries to eat. I have her separated with a bowl of water.