Hi all, I have this duckling just hatched, wobbling around ALL over the place with a sac of yolk hanging from his? umbilical (cloaca), I really am not sure what to do - he's fighting fit and quackling away at me like a trooper but I'm afraid that dragging this sac is a bot of a problem! I have contained him and put him back in the incubator....but what next? Hoping I can leave it and it'll work itself out. Any thoughts??