PLEASE HELP!!! This is our second time trying to hatch duck eggs and the first batch all of them never made. This guy is from the second batch and out of four he's the only one who made it. We don't know what we are doing. Learning as we go.... but we have no idea what this is on him! It's a cross between a runner and Rouen.
It looks like the yolk sac did not absorb. I'm too inexperienced to know if they can absorb after they've hatched. Waiting for someone who is experienced to find out if this is survivable.