My bantam/old English game rooster mix has a bit of leftover food in his crop despite having not been fed in 5 days. The crop is about the size of a golf ball and feels pretty squishy but I can still make out the individual seeds in it. He has not stopped using the bathroom, so I know things are being digested but I fear everything is moving much too slowly and I need to treat the fungi now. Does anyone know of any ways to clear the crop completely so that I may start treatment?