Is this a blood ring or bad egg?

[nuthatched]

Unfortunately, that looks like a blood ring to me

 

[kattabelly]

This is how it looked yesterday View attachment 4238803

Ok yeah that looks different. Personally I don't bother removing eggs until the last few days (unless they started smelling or something but I've never had that happen) but I also wouldn't expect that to hatch.

So you know for future - to post videos you need to upload them to the gallery here first, or to another site like youtube.