the umbilical connection is where the duckling was connected to it's yolk sac has nothing to do with the vent.I heard it on BYC actually. Then did research. Couldn't find anything backing it up, so I asked.
- what is the puffy area (?)below the cloaca on a 4-day old duckling? Is that the umbilical connection? I thought the umbilical was through the cloaca?