Is this the yoke sack?

[woodlandblaze]

This is my first time hatching eggs. Is this spot on the duck the yoke sack? I think it is, but I can't find any pictures online. I assume that it is the yoke sack and will go away within a day or two. Right? Just making sure my assumptions are correct and that this little duckie is ok. Thanks.

 

[cmfarm]

Yes, that is wha it is. It should dry up and heal the rest of the way in a few days. Just make sure no one pecks at it, it can cause the yolk sack to break and then it could die.